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Finding the Fourth Proportional to 79,062.68, 109,107.35 and 43,251.92

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Solution

The fourth proportional to 79,062.68, 109,107.35 and 43,251.92 is: 59,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,062.68 : 109,107.35 = 43,251.92 : x
  2. Step 2: Convert to fraction form
    79,062.68/109,107.35 = 43,251.92/x
  3. Step 3: Cross multiply
    79,062.68x = 109,107.35 × 43,251.92
  4. Step 4: Simplify right side
    79,062.68x = 4,719,102,373.61
  5. Step 5: Solve for x
    x = 4,719,102,373.61/79,062.68
  6. Step 6: Final answer
    x = 59,688.12

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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.