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Finding the Fourth Proportional to 85,487,625,863.20, 119,438,064,399.20 and 85,487,625,863.20

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Solution

The fourth proportional to 85,487,625,863.20, 119,438,064,399.20 and 85,487,625,863.20 is: 119,438,064,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,487,625,863.20 : 119,438,064,399.20 = 85,487,625,863.20 : x
  2. Step 2: Convert to fraction form
    85,487,625,863.20/119,438,064,399.20 = 85,487,625,863.20/x
  3. Step 3: Cross multiply
    85,487,625,863.20x = 119,438,064,399.20 × 85,487,625,863.20
  4. Step 4: Simplify right side
    85,487,625,863.20x = 10,210,476,563,183,597,256,704
  5. Step 5: Solve for x
    x = 10,210,476,563,183,597,256,704/85,487,625,863.20
  6. Step 6: Final answer
    x = 119,438,064,399.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.