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Finding the Fourth Proportional to 67,472.64, 101,209.68 and 34,185.60

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Solution

The fourth proportional to 67,472.64, 101,209.68 and 34,185.60 is: 51,278.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,472.64 : 101,209.68 = 34,185.60 : x
  2. Step 2: Convert to fraction form
    67,472.64/101,209.68 = 34,185.60/x
  3. Step 3: Cross multiply
    67,472.64x = 101,209.68 × 34,185.60
  4. Step 4: Simplify right side
    67,472.64x = 3,459,913,636.61
  5. Step 5: Solve for x
    x = 3,459,913,636.61/67,472.64
  6. Step 6: Final answer
    x = 51,278.76

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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.