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Finding the Fourth Proportional to 336,082.20, 504,123.30 and 86,764.20

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Solution

The fourth proportional to 336,082.20, 504,123.30 and 86,764.20 is: 130,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,082.20 : 504,123.30 = 86,764.20 : x
  2. Step 2: Convert to fraction form
    336,082.20/504,123.30 = 86,764.20/x
  3. Step 3: Cross multiply
    336,082.20x = 504,123.30 × 86,764.20
  4. Step 4: Simplify right side
    336,082.20x = 43,739,854,825.86
  5. Step 5: Solve for x
    x = 43,739,854,825.86/336,082.20
  6. Step 6: Final answer
    x = 130,146.30

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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.