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Finding the Fourth Proportional to 282,753.44, 389,910.48 and 187,225.28

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Solution

The fourth proportional to 282,753.44, 389,910.48 and 187,225.28 is: 258,179.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,753.44 : 389,910.48 = 187,225.28 : x
  2. Step 2: Convert to fraction form
    282,753.44/389,910.48 = 187,225.28/x
  3. Step 3: Cross multiply
    282,753.44x = 389,910.48 × 187,225.28
  4. Step 4: Simplify right side
    282,753.44x = 73,001,098,792.93
  5. Step 5: Solve for x
    x = 73,001,098,792.93/282,753.44
  6. Step 6: Final answer
    x = 258,179.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.