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Finding the Fourth Proportional to 159,286.48, 238,899.96 and 64,491.60

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Solution

The fourth proportional to 159,286.48, 238,899.96 and 64,491.60 is: 96,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,286.48 : 238,899.96 = 64,491.60 : x
  2. Step 2: Convert to fraction form
    159,286.48/238,899.96 = 64,491.60/x
  3. Step 3: Cross multiply
    159,286.48x = 238,899.96 × 64,491.60
  4. Step 4: Simplify right side
    159,286.48x = 15,407,040,660.34
  5. Step 5: Solve for x
    x = 15,407,040,660.34/159,286.48
  6. Step 6: Final answer
    x = 96,725.35

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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.