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Finding the Fourth Proportional to 191,517.60, 287,276.52 and 91,654.32

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Solution

The fourth proportional to 191,517.60, 287,276.52 and 91,654.32 is: 137,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,517.60 : 287,276.52 = 91,654.32 : x
  2. Step 2: Convert to fraction form
    191,517.60/287,276.52 = 91,654.32/x
  3. Step 3: Cross multiply
    191,517.60x = 287,276.52 × 91,654.32
  4. Step 4: Simplify right side
    191,517.60x = 26,330,134,092.57
  5. Step 5: Solve for x
    x = 26,330,134,092.57/191,517.60
  6. Step 6: Final answer
    x = 137,481.54

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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.