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Finding the Fourth Proportional to 57,176.80, 85,692.30 and 27,530.80

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Solution

The fourth proportional to 57,176.80, 85,692.30 and 27,530.80 is: 41,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,176.80 : 85,692.30 = 27,530.80 : x
  2. Step 2: Convert to fraction form
    57,176.80/85,692.30 = 27,530.80/x
  3. Step 3: Cross multiply
    57,176.80x = 85,692.30 × 27,530.80
  4. Step 4: Simplify right side
    57,176.80x = 2,359,177,572.84
  5. Step 5: Solve for x
    x = 2,359,177,572.84/57,176.80
  6. Step 6: Final answer
    x = 41,261.10

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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.