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Finding the Fourth Proportional to 132,240.60, 198,015.84 and 72,951.84

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Solution

The fourth proportional to 132,240.60, 198,015.84 and 72,951.84 is: 109,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,240.60 : 198,015.84 = 72,951.84 : x
  2. Step 2: Convert to fraction form
    132,240.60/198,015.84 = 72,951.84/x
  3. Step 3: Cross multiply
    132,240.60x = 198,015.84 × 72,951.84
  4. Step 4: Simplify right side
    132,240.60x = 14,445,619,877.15
  5. Step 5: Solve for x
    x = 14,445,619,877.15/132,240.60
  6. Step 6: Final answer
    x = 109,237.40

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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.