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Finding the Fourth Proportional to 191,601.85, 287,181.01 and 90,464.04

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Solution

The fourth proportional to 191,601.85, 287,181.01 and 90,464.04 is: 135,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,601.85 : 287,181.01 = 90,464.04 : x
  2. Step 2: Convert to fraction form
    191,601.85/287,181.01 = 90,464.04/x
  3. Step 3: Cross multiply
    191,601.85x = 287,181.01 × 90,464.04
  4. Step 4: Simplify right side
    191,601.85x = 25,979,554,375.88
  5. Step 5: Solve for x
    x = 25,979,554,375.88/191,601.85
  6. Step 6: Final answer
    x = 135,591.35

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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.