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Finding the Fourth Proportional to 125,581.20, 173,294.16 and 115,550.16

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Solution

The fourth proportional to 125,581.20, 173,294.16 and 115,550.16 is: 159,451.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,581.20 : 173,294.16 = 115,550.16 : x
  2. Step 2: Convert to fraction form
    125,581.20/173,294.16 = 115,550.16/x
  3. Step 3: Cross multiply
    125,581.20x = 173,294.16 × 115,550.16
  4. Step 4: Simplify right side
    125,581.20x = 20,024,167,915.07
  5. Step 5: Solve for x
    x = 20,024,167,915.07/125,581.20
  6. Step 6: Final answer
    x = 159,451.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.