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Finding the Fourth Proportional to 67,474.80, 101,213.28 and 30,026.16

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Solution

The fourth proportional to 67,474.80, 101,213.28 and 30,026.16 is: 45,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,474.80 : 101,213.28 = 30,026.16 : x
  2. Step 2: Convert to fraction form
    67,474.80/101,213.28 = 30,026.16/x
  3. Step 3: Cross multiply
    67,474.80x = 101,213.28 × 30,026.16
  4. Step 4: Simplify right side
    67,474.80x = 3,039,046,139.40
  5. Step 5: Solve for x
    x = 3,039,046,139.40/67,474.80
  6. Step 6: Final answer
    x = 45,039.72

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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.