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Finding the Fourth Proportional to 187,672.80, 281,557.20 and 132,376.80

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Solution

The fourth proportional to 187,672.80, 281,557.20 and 132,376.80 is: 198,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,672.80 : 281,557.20 = 132,376.80 : x
  2. Step 2: Convert to fraction form
    187,672.80/281,557.20 = 132,376.80/x
  3. Step 3: Cross multiply
    187,672.80x = 281,557.20 × 132,376.80
  4. Step 4: Simplify right side
    187,672.80x = 37,271,641,152.96
  5. Step 5: Solve for x
    x = 37,271,641,152.96/187,672.80
  6. Step 6: Final answer
    x = 198,599.06

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1.5x scale

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.