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Finding the Fourth Proportional to 235,616.43, 353,417.12 and 75,691.71

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Solution

The fourth proportional to 235,616.43, 353,417.12 and 75,691.71 is: 113,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,616.43 : 353,417.12 = 75,691.71 : x
  2. Step 2: Convert to fraction form
    235,616.43/353,417.12 = 75,691.71/x
  3. Step 3: Cross multiply
    235,616.43x = 353,417.12 × 75,691.71
  4. Step 4: Simplify right side
    235,616.43x = 26,750,746,505.23
  5. Step 5: Solve for x
    x = 26,750,746,505.23/235,616.43
  6. Step 6: Final answer
    x = 113,535.15

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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.