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Finding the Fourth Proportional to 61,463.80, 92,195.70 and 40,687.30

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Solution

The fourth proportional to 61,463.80, 92,195.70 and 40,687.30 is: 61,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,463.80 : 92,195.70 = 40,687.30 : x
  2. Step 2: Convert to fraction form
    61,463.80/92,195.70 = 40,687.30/x
  3. Step 3: Cross multiply
    61,463.80x = 92,195.70 × 40,687.30
  4. Step 4: Simplify right side
    61,463.80x = 3,751,194,104.61
  5. Step 5: Solve for x
    x = 3,751,194,104.61/61,463.80
  6. Step 6: Final answer
    x = 61,030.95

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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.