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Finding the Fourth Proportional to 111,787.92, 167,707.79 and 58,508.84

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Solution

The fourth proportional to 111,787.92, 167,707.79 and 58,508.84 is: 87,776.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,787.92 : 167,707.79 = 58,508.84 : x
  2. Step 2: Convert to fraction form
    111,787.92/167,707.79 = 58,508.84/x
  3. Step 3: Cross multiply
    111,787.92x = 167,707.79 × 58,508.84
  4. Step 4: Simplify right side
    111,787.92x = 9,812,387,120.78
  5. Step 5: Solve for x
    x = 9,812,387,120.78/111,787.92
  6. Step 6: Final answer
    x = 87,776.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.