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Finding the Fourth Proportional to 123,721.44, 185,564.88 and 52,672.56

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Solution

The fourth proportional to 123,721.44, 185,564.88 and 52,672.56 is: 79,001.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,721.44 : 185,564.88 = 52,672.56 : x
  2. Step 2: Convert to fraction form
    123,721.44/185,564.88 = 52,672.56/x
  3. Step 3: Cross multiply
    123,721.44x = 185,564.88 × 52,672.56
  4. Step 4: Simplify right side
    123,721.44x = 9,774,177,275.69
  5. Step 5: Solve for x
    x = 9,774,177,275.69/123,721.44
  6. Step 6: Final answer
    x = 79,001.48

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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.