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Finding the Fourth Proportional to 71,972.10, 107,958.15 and 63,224.10

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Solution

The fourth proportional to 71,972.10, 107,958.15 and 63,224.10 is: 94,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,972.10 : 107,958.15 = 63,224.10 : x
  2. Step 2: Convert to fraction form
    71,972.10/107,958.15 = 63,224.10/x
  3. Step 3: Cross multiply
    71,972.10x = 107,958.15 × 63,224.10
  4. Step 4: Simplify right side
    71,972.10x = 6,825,556,871.42
  5. Step 5: Solve for x
    x = 6,825,556,871.42/71,972.10
  6. Step 6: Final answer
    x = 94,836.15

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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.