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Finding the Fourth Proportional to 79,902.64, 110,232.10 and 56,044.90

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Solution

The fourth proportional to 79,902.64, 110,232.10 and 56,044.90 is: 77,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,902.64 : 110,232.10 = 56,044.90 : x
  2. Step 2: Convert to fraction form
    79,902.64/110,232.10 = 56,044.90/x
  3. Step 3: Cross multiply
    79,902.64x = 110,232.10 × 56,044.90
  4. Step 4: Simplify right side
    79,902.64x = 6,177,947,021.29
  5. Step 5: Solve for x
    x = 6,177,947,021.29/79,902.64
  6. Step 6: Final answer
    x = 77,318.43

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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.