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Finding the Fourth Proportional to 71,936.08, 107,913.96 and 67,562.08

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Solution

The fourth proportional to 71,936.08, 107,913.96 and 67,562.08 is: 101,352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,936.08 : 107,913.96 = 67,562.08 : x
  2. Step 2: Convert to fraction form
    71,936.08/107,913.96 = 67,562.08/x
  3. Step 3: Cross multiply
    71,936.08x = 107,913.96 × 67,562.08
  4. Step 4: Simplify right side
    71,936.08x = 7,290,891,598.64
  5. Step 5: Solve for x
    x = 7,290,891,598.64/71,936.08
  6. Step 6: Final answer
    x = 101,352.36

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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.