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Finding the Fourth Proportional to 187,099.60, 281,340.60 and 156,686.80

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Solution

The fourth proportional to 187,099.60, 281,340.60 and 156,686.80 is: 235,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,099.60 : 281,340.60 = 156,686.80 : x
  2. Step 2: Convert to fraction form
    187,099.60/281,340.60 = 156,686.80/x
  3. Step 3: Cross multiply
    187,099.60x = 281,340.60 × 156,686.80
  4. Step 4: Simplify right side
    187,099.60x = 44,082,358,324.08
  5. Step 5: Solve for x
    x = 44,082,358,324.08/187,099.60
  6. Step 6: Final answer
    x = 235,609.05

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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.