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Finding the Fourth Proportional to 125,116.57, 172,660.87 and 68,527.94

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Solution

The fourth proportional to 125,116.57, 172,660.87 and 68,527.94 is: 94,568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,116.57 : 172,660.87 = 68,527.94 : x
  2. Step 2: Convert to fraction form
    125,116.57/172,660.87 = 68,527.94/x
  3. Step 3: Cross multiply
    125,116.57x = 172,660.87 × 68,527.94
  4. Step 4: Simplify right side
    125,116.57x = 11,832,093,739.71
  5. Step 5: Solve for x
    x = 11,832,093,739.71/125,116.57
  6. Step 6: Final answer
    x = 94,568.56

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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.