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Finding the Fourth Proportional to 71,610.10, 107,469.83 and 36,106.90

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Solution

The fourth proportional to 71,610.10, 107,469.83 and 36,106.90 is: 54,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,610.10 : 107,469.83 = 36,106.90 : x
  2. Step 2: Convert to fraction form
    71,610.10/107,469.83 = 36,106.90/x
  3. Step 3: Cross multiply
    71,610.10x = 107,469.83 × 36,106.90
  4. Step 4: Simplify right side
    71,610.10x = 3,880,402,226.42
  5. Step 5: Solve for x
    x = 3,880,402,226.42/71,610.10
  6. Step 6: Final answer
    x = 54,187.92

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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.