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Finding the Fourth Proportional to 70,800.68, 106,138.15 and 26,397.29

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Solution

The fourth proportional to 70,800.68, 106,138.15 and 26,397.29 is: 39,572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,800.68 : 106,138.15 = 26,397.29 : x
  2. Step 2: Convert to fraction form
    70,800.68/106,138.15 = 26,397.29/x
  3. Step 3: Cross multiply
    70,800.68x = 106,138.15 × 26,397.29
  4. Step 4: Simplify right side
    70,800.68x = 2,801,759,724.97
  5. Step 5: Solve for x
    x = 2,801,759,724.97/70,800.68
  6. Step 6: Final answer
    x = 39,572.50

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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.