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Finding the Fourth Proportional to 167,911.30, 251,721.15 and 101,280.70

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Solution

The fourth proportional to 167,911.30, 251,721.15 and 101,280.70 is: 151,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,911.30 : 251,721.15 = 101,280.70 : x
  2. Step 2: Convert to fraction form
    167,911.30/251,721.15 = 101,280.70/x
  3. Step 3: Cross multiply
    167,911.30x = 251,721.15 × 101,280.70
  4. Step 4: Simplify right side
    167,911.30x = 25,494,494,276.81
  5. Step 5: Solve for x
    x = 25,494,494,276.81/167,911.30
  6. Step 6: Final answer
    x = 151,833.11

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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.