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Finding the Fourth Proportional to 239,706.92, 359,448.60 and 71,165.36

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Solution

The fourth proportional to 239,706.92, 359,448.60 and 71,165.36 is: 106,714.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,706.92 : 359,448.60 = 71,165.36 : x
  2. Step 2: Convert to fraction form
    239,706.92/359,448.60 = 71,165.36/x
  3. Step 3: Cross multiply
    239,706.92x = 359,448.60 × 71,165.36
  4. Step 4: Simplify right side
    239,706.92x = 25,580,289,020.50
  5. Step 5: Solve for x
    x = 25,580,289,020.50/239,706.92
  6. Step 6: Final answer
    x = 106,714.85

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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.