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Finding the Fourth Proportional to 97,410.20, 146,115.30 and 74,082.20

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Solution

The fourth proportional to 97,410.20, 146,115.30 and 74,082.20 is: 111,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,410.20 : 146,115.30 = 74,082.20 : x
  2. Step 2: Convert to fraction form
    97,410.20/146,115.30 = 74,082.20/x
  3. Step 3: Cross multiply
    97,410.20x = 146,115.30 × 74,082.20
  4. Step 4: Simplify right side
    97,410.20x = 10,824,542,877.66
  5. Step 5: Solve for x
    x = 10,824,542,877.66/97,410.20
  6. Step 6: Final answer
    x = 111,123.30

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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.