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Finding the Fourth Proportional to 70,404.28, 104,978.39 and 62,580.29

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Solution

The fourth proportional to 70,404.28, 104,978.39 and 62,580.29 is: 93,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,404.28 : 104,978.39 = 62,580.29 : x
  2. Step 2: Convert to fraction form
    70,404.28/104,978.39 = 62,580.29/x
  3. Step 3: Cross multiply
    70,404.28x = 104,978.39 × 62,580.29
  4. Step 4: Simplify right side
    70,404.28x = 6,569,577,252.14
  5. Step 5: Solve for x
    x = 6,569,577,252.14/70,404.28
  6. Step 6: Final answer
    x = 93,312.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.