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Finding the Fourth Proportional to 150,743.80, 226,115.70 and 72,011.80

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Solution

The fourth proportional to 150,743.80, 226,115.70 and 72,011.80 is: 108,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,743.80 : 226,115.70 = 72,011.80 : x
  2. Step 2: Convert to fraction form
    150,743.80/226,115.70 = 72,011.80/x
  3. Step 3: Cross multiply
    150,743.80x = 226,115.70 × 72,011.80
  4. Step 4: Simplify right side
    150,743.80x = 16,282,998,565.26
  5. Step 5: Solve for x
    x = 16,282,998,565.26/150,743.80
  6. Step 6: Final answer
    x = 108,017.70

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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.