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Finding the Fourth Proportional to 274,375.24, 411,570.15 and 74,699.71

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Solution

The fourth proportional to 274,375.24, 411,570.15 and 74,699.71 is: 112,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,375.24 : 411,570.15 = 74,699.71 : x
  2. Step 2: Convert to fraction form
    274,375.24/411,570.15 = 74,699.71/x
  3. Step 3: Cross multiply
    274,375.24x = 411,570.15 × 74,699.71
  4. Step 4: Simplify right side
    274,375.24x = 30,744,170,849.66
  5. Step 5: Solve for x
    x = 30,744,170,849.66/274,375.24
  6. Step 6: Final answer
    x = 112,051.55

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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.