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Finding the Fourth Proportional to 159,939.55, 239,895.36 and 65,179.67

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Solution

The fourth proportional to 159,939.55, 239,895.36 and 65,179.67 is: 97,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,939.55 : 239,895.36 = 65,179.67 : x
  2. Step 2: Convert to fraction form
    159,939.55/239,895.36 = 65,179.67/x
  3. Step 3: Cross multiply
    159,939.55x = 239,895.36 × 65,179.67
  4. Step 4: Simplify right side
    159,939.55x = 15,636,300,399.33
  5. Step 5: Solve for x
    x = 15,636,300,399.33/159,939.55
  6. Step 6: Final answer
    x = 97,763.82

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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.