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Finding the Fourth Proportional to 119,591.80, 165,037.80 and 65,877.04

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Solution

The fourth proportional to 119,591.80, 165,037.80 and 65,877.04 is: 90,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,591.80 : 165,037.80 = 65,877.04 : x
  2. Step 2: Convert to fraction form
    119,591.80/165,037.80 = 65,877.04/x
  3. Step 3: Cross multiply
    119,591.80x = 165,037.80 × 65,877.04
  4. Step 4: Simplify right side
    119,591.80x = 10,872,201,752.11
  5. Step 5: Solve for x
    x = 10,872,201,752.11/119,591.80
  6. Step 6: Final answer
    x = 90,910.93

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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.