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Finding the Fourth Proportional to 73,267.80, 109,901.70 and 43,743.30

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Solution

The fourth proportional to 73,267.80, 109,901.70 and 43,743.30 is: 65,614.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,267.80 : 109,901.70 = 43,743.30 : x
  2. Step 2: Convert to fraction form
    73,267.80/109,901.70 = 43,743.30/x
  3. Step 3: Cross multiply
    73,267.80x = 109,901.70 × 43,743.30
  4. Step 4: Simplify right side
    73,267.80x = 4,807,463,033.61
  5. Step 5: Solve for x
    x = 4,807,463,033.61/73,267.80
  6. Step 6: Final answer
    x = 65,614.95

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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.