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Finding the Fourth Proportional to 461.95, 692.95 and 132.87

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Solution

The fourth proportional to 461.95, 692.95 and 132.87 is: 199.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.95 : 692.95 = 132.87 : x
  2. Step 2: Convert to fraction form
    461.95/692.95 = 132.87/x
  3. Step 3: Cross multiply
    461.95x = 692.95 × 132.87
  4. Step 4: Simplify right side
    461.95x = 92,073.97
  5. Step 5: Solve for x
    x = 92,073.97/461.95
  6. Step 6: Final answer
    x = 199.32

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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.