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Finding the Fourth Proportional to 119,447.87, 164,841.92 and 68,470.24

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Solution

The fourth proportional to 119,447.87, 164,841.92 and 68,470.24 is: 94,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,447.87 : 164,841.92 = 68,470.24 : x
  2. Step 2: Convert to fraction form
    119,447.87/164,841.92 = 68,470.24/x
  3. Step 3: Cross multiply
    119,447.87x = 164,841.92 × 68,470.24
  4. Step 4: Simplify right side
    119,447.87x = 11,286,766,070.94
  5. Step 5: Solve for x
    x = 11,286,766,070.94/119,447.87
  6. Step 6: Final answer
    x = 94,491.15

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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.