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Finding the Fourth Proportional to 119,520.90, 164,966.85 and 68,532.71

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Solution

The fourth proportional to 119,520.90, 164,966.85 and 68,532.71 is: 94,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,520.90 : 164,966.85 = 68,532.71 : x
  2. Step 2: Convert to fraction form
    119,520.90/164,966.85 = 68,532.71/x
  3. Step 3: Cross multiply
    119,520.90x = 164,966.85 × 68,532.71
  4. Step 4: Simplify right side
    119,520.90x = 11,305,624,465.83
  5. Step 5: Solve for x
    x = 11,305,624,465.83/119,520.90
  6. Step 6: Final answer
    x = 94,591.19

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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.