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Finding the Fourth Proportional to 67,139.88, 92,654.10 and 36,926.52

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Solution

The fourth proportional to 67,139.88, 92,654.10 and 36,926.52 is: 50,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,139.88 : 92,654.10 = 36,926.52 : x
  2. Step 2: Convert to fraction form
    67,139.88/92,654.10 = 36,926.52/x
  3. Step 3: Cross multiply
    67,139.88x = 92,654.10 × 36,926.52
  4. Step 4: Simplify right side
    67,139.88x = 3,421,393,476.73
  5. Step 5: Solve for x
    x = 3,421,393,476.73/67,139.88
  6. Step 6: Final answer
    x = 50,959.18

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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.