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Finding the Fourth Proportional to 85,366.44, 128,064.69 and 29,193.35

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Solution

The fourth proportional to 85,366.44, 128,064.69 and 29,193.35 is: 43,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,366.44 : 128,064.69 = 29,193.35 : x
  2. Step 2: Convert to fraction form
    85,366.44/128,064.69 = 29,193.35/x
  3. Step 3: Cross multiply
    85,366.44x = 128,064.69 × 29,193.35
  4. Step 4: Simplify right side
    85,366.44x = 3,738,636,677.49
  5. Step 5: Solve for x
    x = 3,738,636,677.49/85,366.44
  6. Step 6: Final answer
    x = 43,795.16

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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.