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Finding the Fourth Proportional to 67,332.80, 100,853.40 and 43,713.20

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Solution

The fourth proportional to 67,332.80, 100,853.40 and 43,713.20 is: 65,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,332.80 : 100,853.40 = 43,713.20 : x
  2. Step 2: Convert to fraction form
    67,332.80/100,853.40 = 43,713.20/x
  3. Step 3: Cross multiply
    67,332.80x = 100,853.40 × 43,713.20
  4. Step 4: Simplify right side
    67,332.80x = 4,408,624,844.88
  5. Step 5: Solve for x
    x = 4,408,624,844.88/67,332.80
  6. Step 6: Final answer
    x = 65,475.15

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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.