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Finding the Fourth Proportional to 191,745.20, 287,617.80 and 173,082.80

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Solution

The fourth proportional to 191,745.20, 287,617.80 and 173,082.80 is: 259,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,745.20 : 287,617.80 = 173,082.80 : x
  2. Step 2: Convert to fraction form
    191,745.20/287,617.80 = 173,082.80/x
  3. Step 3: Cross multiply
    191,745.20x = 287,617.80 × 173,082.80
  4. Step 4: Simplify right side
    191,745.20x = 49,781,694,153.84
  5. Step 5: Solve for x
    x = 49,781,694,153.84/191,745.20
  6. Step 6: Final answer
    x = 259,624.20

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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.