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Finding the Fourth Proportional to 71,373.28, 107,059.62 and 18,065.44

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Solution

The fourth proportional to 71,373.28, 107,059.62 and 18,065.44 is: 27,098.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,373.28 : 107,059.62 = 18,065.44 : x
  2. Step 2: Convert to fraction form
    71,373.28/107,059.62 = 18,065.44/x
  3. Step 3: Cross multiply
    71,373.28x = 107,059.62 × 18,065.44
  4. Step 4: Simplify right side
    71,373.28x = 1,934,079,141.53
  5. Step 5: Solve for x
    x = 1,934,079,141.53/71,373.28
  6. Step 6: Final answer
    x = 27,098.08

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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.