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Finding the Fourth Proportional to 159,082.80, 238,618.71 and 40,755.30

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Solution

The fourth proportional to 159,082.80, 238,618.71 and 40,755.30 is: 61,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,082.80 : 238,618.71 = 40,755.30 : x
  2. Step 2: Convert to fraction form
    159,082.80/238,618.71 = 40,755.30/x
  3. Step 3: Cross multiply
    159,082.80x = 238,618.71 × 40,755.30
  4. Step 4: Simplify right side
    159,082.80x = 9,724,977,111.66
  5. Step 5: Solve for x
    x = 9,724,977,111.66/159,082.80
  6. Step 6: Final answer
    x = 61,131.54

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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.