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Finding the Fourth Proportional to 67,474.92, 101,274.33 and 34,218.86

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Solution

The fourth proportional to 67,474.92, 101,274.33 and 34,218.86 is: 51,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,474.92 : 101,274.33 = 34,218.86 : x
  2. Step 2: Convert to fraction form
    67,474.92/101,274.33 = 34,218.86/x
  3. Step 3: Cross multiply
    67,474.92x = 101,274.33 × 34,218.86
  4. Step 4: Simplify right side
    67,474.92x = 3,465,491,741.81
  5. Step 5: Solve for x
    x = 3,465,491,741.81/67,474.92
  6. Step 6: Final answer
    x = 51,359.70

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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.