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Finding the Fourth Proportional to 71,126.58, 106,756.84 and 36,091.38

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Solution

The fourth proportional to 71,126.58, 106,756.84 and 36,091.38 is: 54,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,126.58 : 106,756.84 = 36,091.38 : x
  2. Step 2: Convert to fraction form
    71,126.58/106,756.84 = 36,091.38/x
  3. Step 3: Cross multiply
    71,126.58x = 106,756.84 × 36,091.38
  4. Step 4: Simplify right side
    71,126.58x = 3,853,001,680.04
  5. Step 5: Solve for x
    x = 3,853,001,680.04/71,126.58
  6. Step 6: Final answer
    x = 54,171.05

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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.