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Finding the Fourth Proportional to 159,057.76, 238,580.40 and 53,876.72

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Solution

The fourth proportional to 159,057.76, 238,580.40 and 53,876.72 is: 80,812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,057.76 : 238,580.40 = 53,876.72 : x
  2. Step 2: Convert to fraction form
    159,057.76/238,580.40 = 53,876.72/x
  3. Step 3: Cross multiply
    159,057.76x = 238,580.40 × 53,876.72
  4. Step 4: Simplify right side
    159,057.76x = 12,853,929,408.29
  5. Step 5: Solve for x
    x = 12,853,929,408.29/159,057.76
  6. Step 6: Final answer
    x = 80,812.97

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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.