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Finding the Fourth Proportional to 187,699.92, 281,591.40 and 103,416.68

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Solution

The fourth proportional to 187,699.92, 281,591.40 and 103,416.68 is: 155,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,699.92 : 281,591.40 = 103,416.68 : x
  2. Step 2: Convert to fraction form
    187,699.92/281,591.40 = 103,416.68/x
  3. Step 3: Cross multiply
    187,699.92x = 281,591.40 × 103,416.68
  4. Step 4: Simplify right side
    187,699.92x = 29,121,247,704.55
  5. Step 5: Solve for x
    x = 29,121,247,704.55/187,699.92
  6. Step 6: Final answer
    x = 155,147.90

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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.