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Finding the Fourth Proportional to 167,147.54, 250,721.86 and 42,488.54

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Solution

The fourth proportional to 167,147.54, 250,721.86 and 42,488.54 is: 63,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,147.54 : 250,721.86 = 42,488.54 : x
  2. Step 2: Convert to fraction form
    167,147.54/250,721.86 = 42,488.54/x
  3. Step 3: Cross multiply
    167,147.54x = 250,721.86 × 42,488.54
  4. Step 4: Simplify right side
    167,147.54x = 10,652,805,777.48
  5. Step 5: Solve for x
    x = 10,652,805,777.48/167,147.54
  6. Step 6: Final answer
    x = 63,732.95

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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.