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Finding the Fourth Proportional to 119,122.61, 178,672.82 and 40,237.52

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Solution

The fourth proportional to 119,122.61, 178,672.82 and 40,237.52 is: 60,352.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,122.61 : 178,672.82 = 40,237.52 : x
  2. Step 2: Convert to fraction form
    119,122.61/178,672.82 = 40,237.52/x
  3. Step 3: Cross multiply
    119,122.61x = 178,672.82 × 40,237.52
  4. Step 4: Simplify right side
    119,122.61x = 7,189,350,073.65
  5. Step 5: Solve for x
    x = 7,189,350,073.65/119,122.61
  6. Step 6: Final answer
    x = 60,352.53

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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.