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Finding the Fourth Proportional to 73,842.80, 110,764.20 and 34,403.90

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Solution

The fourth proportional to 73,842.80, 110,764.20 and 34,403.90 is: 51,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,842.80 : 110,764.20 = 34,403.90 : x
  2. Step 2: Convert to fraction form
    73,842.80/110,764.20 = 34,403.90/x
  3. Step 3: Cross multiply
    73,842.80x = 110,764.20 × 34,403.90
  4. Step 4: Simplify right side
    73,842.80x = 3,810,720,460.38
  5. Step 5: Solve for x
    x = 3,810,720,460.38/73,842.80
  6. Step 6: Final answer
    x = 51,605.85

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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.