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Finding the Fourth Proportional to 92,565.71, 127,738.09 and 54,839.96

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Solution

The fourth proportional to 92,565.71, 127,738.09 and 54,839.96 is: 75,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,565.71 : 127,738.09 = 54,839.96 : x
  2. Step 2: Convert to fraction form
    92,565.71/127,738.09 = 54,839.96/x
  3. Step 3: Cross multiply
    92,565.71x = 127,738.09 × 54,839.96
  4. Step 4: Simplify right side
    92,565.71x = 7,005,151,746.08
  5. Step 5: Solve for x
    x = 7,005,151,746.08/92,565.71
  6. Step 6: Final answer
    x = 75,677.61

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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.