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Finding the Fourth Proportional to 73,561.20, 110,341.80 and 29,165.10

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Solution

The fourth proportional to 73,561.20, 110,341.80 and 29,165.10 is: 43,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,561.20 : 110,341.80 = 29,165.10 : x
  2. Step 2: Convert to fraction form
    73,561.20/110,341.80 = 29,165.10/x
  3. Step 3: Cross multiply
    73,561.20x = 110,341.80 × 29,165.10
  4. Step 4: Simplify right side
    73,561.20x = 3,218,129,631.18
  5. Step 5: Solve for x
    x = 3,218,129,631.18/73,561.20
  6. Step 6: Final answer
    x = 43,747.65

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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.