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Finding the Fourth Proportional to 187,283.28, 280,952.82 and 68,945.52

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Solution

The fourth proportional to 187,283.28, 280,952.82 and 68,945.52 is: 103,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,283.28 : 280,952.82 = 68,945.52 : x
  2. Step 2: Convert to fraction form
    187,283.28/280,952.82 = 68,945.52/x
  3. Step 3: Cross multiply
    187,283.28x = 280,952.82 × 68,945.52
  4. Step 4: Simplify right side
    187,283.28x = 19,370,438,270.37
  5. Step 5: Solve for x
    x = 19,370,438,270.37/187,283.28
  6. Step 6: Final answer
    x = 103,428.55

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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.