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Finding the Fourth Proportional to 119,790.97, 165,323.14 and 89,523.81

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Solution

The fourth proportional to 119,790.97, 165,323.14 and 89,523.81 is: 123,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,790.97 : 165,323.14 = 89,523.81 : x
  2. Step 2: Convert to fraction form
    119,790.97/165,323.14 = 89,523.81/x
  3. Step 3: Cross multiply
    119,790.97x = 165,323.14 × 89,523.81
  4. Step 4: Simplify right side
    119,790.97x = 14,800,357,150.15
  5. Step 5: Solve for x
    x = 14,800,357,150.15/119,790.97
  6. Step 6: Final answer
    x = 123,551.53

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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.