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Finding the Fourth Proportional to 71,112.98, 106,727.80 and 36,062.66

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Solution

The fourth proportional to 71,112.98, 106,727.80 and 36,062.66 is: 54,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,112.98 : 106,727.80 = 36,062.66 : x
  2. Step 2: Convert to fraction form
    71,112.98/106,727.80 = 36,062.66/x
  3. Step 3: Cross multiply
    71,112.98x = 106,727.80 × 36,062.66
  4. Step 4: Simplify right side
    71,112.98x = 3,848,888,363.95
  5. Step 5: Solve for x
    x = 3,848,888,363.95/71,112.98
  6. Step 6: Final answer
    x = 54,123.57

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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.