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Finding the Fourth Proportional to 187,951.60, 281,938.20 and 54,852.40

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Solution

The fourth proportional to 187,951.60, 281,938.20 and 54,852.40 is: 82,281.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,951.60 : 281,938.20 = 54,852.40 : x
  2. Step 2: Convert to fraction form
    187,951.60/281,938.20 = 54,852.40/x
  3. Step 3: Cross multiply
    187,951.60x = 281,938.20 × 54,852.40
  4. Step 4: Simplify right side
    187,951.60x = 15,464,986,921.68
  5. Step 5: Solve for x
    x = 15,464,986,921.68/187,951.60
  6. Step 6: Final answer
    x = 82,281.75

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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.