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Finding the Fourth Proportional to 159,438.92, 239,187.80 and 65,951.96

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Solution

The fourth proportional to 159,438.92, 239,187.80 and 65,951.96 is: 98,940.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,438.92 : 239,187.80 = 65,951.96 : x
  2. Step 2: Convert to fraction form
    159,438.92/239,187.80 = 65,951.96/x
  3. Step 3: Cross multiply
    159,438.92x = 239,187.80 × 65,951.96
  4. Step 4: Simplify right side
    159,438.92x = 15,774,903,187.03
  5. Step 5: Solve for x
    x = 15,774,903,187.03/159,438.92
  6. Step 6: Final answer
    x = 98,940.11

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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.