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Finding the Fourth Proportional to 41,129.20, 57,712.10 and 41,129.20

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Solution

The fourth proportional to 41,129.20, 57,712.10 and 41,129.20 is: 57,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,129.20 : 57,712.10 = 41,129.20 : x
  2. Step 2: Convert to fraction form
    41,129.20/57,712.10 = 41,129.20/x
  3. Step 3: Cross multiply
    41,129.20x = 57,712.10 × 41,129.20
  4. Step 4: Simplify right side
    41,129.20x = 2,373,652,503.32
  5. Step 5: Solve for x
    x = 2,373,652,503.32/41,129.20
  6. Step 6: Final answer
    x = 57,712.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.