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Finding the Fourth Proportional to 187,293.52, 280,968.20 and 68,955.76

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Solution

The fourth proportional to 187,293.52, 280,968.20 and 68,955.76 is: 103,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,293.52 : 280,968.20 = 68,955.76 : x
  2. Step 2: Convert to fraction form
    187,293.52/280,968.20 = 68,955.76/x
  3. Step 3: Cross multiply
    187,293.52x = 280,968.20 × 68,955.76
  4. Step 4: Simplify right side
    187,293.52x = 19,374,375,766.83
  5. Step 5: Solve for x
    x = 19,374,375,766.83/187,293.52
  6. Step 6: Final answer
    x = 103,443.92

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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.