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Finding the Fourth Proportional to 61,393.52, 92,139.48 and 31,819.82

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Solution

The fourth proportional to 61,393.52, 92,139.48 and 31,819.82 is: 47,755.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,393.52 : 92,139.48 = 31,819.82 : x
  2. Step 2: Convert to fraction form
    61,393.52/92,139.48 = 31,819.82/x
  3. Step 3: Cross multiply
    61,393.52x = 92,139.48 × 31,819.82
  4. Step 4: Simplify right side
    61,393.52x = 2,931,861,668.49
  5. Step 5: Solve for x
    x = 2,931,861,668.49/61,393.52
  6. Step 6: Final answer
    x = 47,755.23

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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.