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Finding the Fourth Proportional to 61,799.68, 92,704.32 and 20,250.88

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Solution

The fourth proportional to 61,799.68, 92,704.32 and 20,250.88 is: 30,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,799.68 : 92,704.32 = 20,250.88 : x
  2. Step 2: Convert to fraction form
    61,799.68/92,704.32 = 20,250.88/x
  3. Step 3: Cross multiply
    61,799.68x = 92,704.32 × 20,250.88
  4. Step 4: Simplify right side
    61,799.68x = 1,877,344,059.80
  5. Step 5: Solve for x
    x = 1,877,344,059.80/61,799.68
  6. Step 6: Final answer
    x = 30,377.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.