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Finding the Fourth Proportional to 67,421.20, 101,034.60 and 29,950.60

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Solution

The fourth proportional to 67,421.20, 101,034.60 and 29,950.60 is: 44,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,421.20 : 101,034.60 = 29,950.60 : x
  2. Step 2: Convert to fraction form
    67,421.20/101,034.60 = 29,950.60/x
  3. Step 3: Cross multiply
    67,421.20x = 101,034.60 × 29,950.60
  4. Step 4: Simplify right side
    67,421.20x = 3,026,046,890.76
  5. Step 5: Solve for x
    x = 3,026,046,890.76/67,421.20
  6. Step 6: Final answer
    x = 44,882.72

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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.