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Finding the Fourth Proportional to 92,713.44, 138,391.50 and 79,649.76

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Solution

The fourth proportional to 92,713.44, 138,391.50 and 79,649.76 is: 118,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,713.44 : 138,391.50 = 79,649.76 : x
  2. Step 2: Convert to fraction form
    92,713.44/138,391.50 = 79,649.76/x
  3. Step 3: Cross multiply
    92,713.44x = 138,391.50 × 79,649.76
  4. Step 4: Simplify right side
    92,713.44x = 11,022,849,761.04
  5. Step 5: Solve for x
    x = 11,022,849,761.04/92,713.44
  6. Step 6: Final answer
    x = 118,891.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.