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Finding the Fourth Proportional to 191,589.60, 287,241.12 and 132,255.84

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Solution

The fourth proportional to 191,589.60, 287,241.12 and 132,255.84 is: 198,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,589.60 : 287,241.12 = 132,255.84 : x
  2. Step 2: Convert to fraction form
    191,589.60/287,241.12 = 132,255.84/x
  3. Step 3: Cross multiply
    191,589.60x = 287,241.12 × 132,255.84
  4. Step 4: Simplify right side
    191,589.60x = 37,989,315,608.14
  5. Step 5: Solve for x
    x = 37,989,315,608.14/191,589.60
  6. Step 6: Final answer
    x = 198,284.85

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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.