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Finding the Fourth Proportional to 83,892.61, 125,858.63 and 27,732.72

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Solution

The fourth proportional to 83,892.61, 125,858.63 and 27,732.72 is: 41,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,892.61 : 125,858.63 = 27,732.72 : x
  2. Step 2: Convert to fraction form
    83,892.61/125,858.63 = 27,732.72/x
  3. Step 3: Cross multiply
    83,892.61x = 125,858.63 × 27,732.72
  4. Step 4: Simplify right side
    83,892.61x = 3,490,402,176.70
  5. Step 5: Solve for x
    x = 3,490,402,176.70/83,892.61
  6. Step 6: Final answer
    x = 41,605.60

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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.