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Finding the Fourth Proportional to 88,134, 121,624.92 and 48,392.56

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Solution

The fourth proportional to 88,134, 121,624.92 and 48,392.56 is: 66,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,134 : 121,624.92 = 48,392.56 : x
  2. Step 2: Convert to fraction form
    88,134/121,624.92 = 48,392.56/x
  3. Step 3: Cross multiply
    88,134x = 121,624.92 × 48,392.56
  4. Step 4: Simplify right side
    88,134x = 5,885,741,238.60
  5. Step 5: Solve for x
    x = 5,885,741,238.60/88,134
  6. Step 6: Final answer
    x = 66,781.73

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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.