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Finding the Fourth Proportional to 187,661.10, 281,510.13 and 54,542.52

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Solution

The fourth proportional to 187,661.10, 281,510.13 and 54,542.52 is: 81,819.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,661.10 : 281,510.13 = 54,542.52 : x
  2. Step 2: Convert to fraction form
    187,661.10/281,510.13 = 54,542.52/x
  3. Step 3: Cross multiply
    187,661.10x = 281,510.13 × 54,542.52
  4. Step 4: Simplify right side
    187,661.10x = 15,354,271,895.73
  5. Step 5: Solve for x
    x = 15,354,271,895.73/187,661.10
  6. Step 6: Final answer
    x = 81,819.15

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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.