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Finding the Fourth Proportional to 159,446.40, 238,741.92 and 89,125.44

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Solution

The fourth proportional to 159,446.40, 238,741.92 and 89,125.44 is: 133,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,446.40 : 238,741.92 = 89,125.44 : x
  2. Step 2: Convert to fraction form
    159,446.40/238,741.92 = 89,125.44/x
  3. Step 3: Cross multiply
    159,446.40x = 238,741.92 × 89,125.44
  4. Step 4: Simplify right side
    159,446.40x = 21,277,978,666.44
  5. Step 5: Solve for x
    x = 21,277,978,666.44/159,446.40
  6. Step 6: Final answer
    x = 133,449.10

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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.