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Finding the Fourth Proportional to 99,166.92, 136,836.57 and 58,332.90

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Solution

The fourth proportional to 99,166.92, 136,836.57 and 58,332.90 is: 80,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,166.92 : 136,836.57 = 58,332.90 : x
  2. Step 2: Convert to fraction form
    99,166.92/136,836.57 = 58,332.90/x
  3. Step 3: Cross multiply
    99,166.92x = 136,836.57 × 58,332.90
  4. Step 4: Simplify right side
    99,166.92x = 7,982,073,954.15
  5. Step 5: Solve for x
    x = 7,982,073,954.15/99,166.92
  6. Step 6: Final answer
    x = 80,491.30

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1.5x scale

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.