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Finding the Fourth Proportional to 121,663.65, 182,439.90 and 37,394.49

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Solution

The fourth proportional to 121,663.65, 182,439.90 and 37,394.49 is: 56,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,663.65 : 182,439.90 = 37,394.49 : x
  2. Step 2: Convert to fraction form
    121,663.65/182,439.90 = 37,394.49/x
  3. Step 3: Cross multiply
    121,663.65x = 182,439.90 × 37,394.49
  4. Step 4: Simplify right side
    121,663.65x = 6,822,247,016.15
  5. Step 5: Solve for x
    x = 6,822,247,016.15/121,663.65
  6. Step 6: Final answer
    x = 56,074.65

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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.