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Finding the Fourth Proportional to 185,850.60, 278,775.90 and 129,863.40

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Solution

The fourth proportional to 185,850.60, 278,775.90 and 129,863.40 is: 194,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,850.60 : 278,775.90 = 129,863.40 : x
  2. Step 2: Convert to fraction form
    185,850.60/278,775.90 = 129,863.40/x
  3. Step 3: Cross multiply
    185,850.60x = 278,775.90 × 129,863.40
  4. Step 4: Simplify right side
    185,850.60x = 36,202,786,212.06
  5. Step 5: Solve for x
    x = 36,202,786,212.06/185,850.60
  6. Step 6: Final answer
    x = 194,795.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.