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Finding the Fourth Proportional to 119,569.92, 165,006.48 and 65,854.48

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Solution

The fourth proportional to 119,569.92, 165,006.48 and 65,854.48 is: 90,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,569.92 : 165,006.48 = 65,854.48 : x
  2. Step 2: Convert to fraction form
    119,569.92/165,006.48 = 65,854.48/x
  3. Step 3: Cross multiply
    119,569.92x = 165,006.48 × 65,854.48
  4. Step 4: Simplify right side
    119,569.92x = 10,866,415,937.03
  5. Step 5: Solve for x
    x = 10,866,415,937.03/119,569.92
  6. Step 6: Final answer
    x = 90,879.18

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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.