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Finding the Fourth Proportional to 191,758.55, 287,575.22 and 63,640.42

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Solution

The fourth proportional to 191,758.55, 287,575.22 and 63,640.42 is: 95,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,758.55 : 287,575.22 = 63,640.42 : x
  2. Step 2: Convert to fraction form
    191,758.55/287,575.22 = 63,640.42/x
  3. Step 3: Cross multiply
    191,758.55x = 287,575.22 × 63,640.42
  4. Step 4: Simplify right side
    191,758.55x = 18,301,406,026.31
  5. Step 5: Solve for x
    x = 18,301,406,026.31/191,758.55
  6. Step 6: Final answer
    x = 95,439.85

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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.