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Finding the Fourth Proportional to 85,064.10, 127,593.18 and 45,698.10

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Solution

The fourth proportional to 85,064.10, 127,593.18 and 45,698.10 is: 68,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,064.10 : 127,593.18 = 45,698.10 : x
  2. Step 2: Convert to fraction form
    85,064.10/127,593.18 = 45,698.10/x
  3. Step 3: Cross multiply
    85,064.10x = 127,593.18 × 45,698.10
  4. Step 4: Simplify right side
    85,064.10x = 5,830,765,898.96
  5. Step 5: Solve for x
    x = 5,830,765,898.96/85,064.10
  6. Step 6: Final answer
    x = 68,545.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.