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Finding the Fourth Proportional to 66,124.48, 91,251.42 and 35,909.52

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Solution

The fourth proportional to 66,124.48, 91,251.42 and 35,909.52 is: 49,554.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,124.48 : 91,251.42 = 35,909.52 : x
  2. Step 2: Convert to fraction form
    66,124.48/91,251.42 = 35,909.52/x
  3. Step 3: Cross multiply
    66,124.48x = 91,251.42 × 35,909.52
  4. Step 4: Simplify right side
    66,124.48x = 3,276,794,691.52
  5. Step 5: Solve for x
    x = 3,276,794,691.52/66,124.48
  6. Step 6: Final answer
    x = 49,554.94

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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.