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Finding the Fourth Proportional to 239,801.48, 359,702.08 and 71,321.12

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Solution

The fourth proportional to 239,801.48, 359,702.08 and 71,321.12 is: 106,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,801.48 : 359,702.08 = 71,321.12 : x
  2. Step 2: Convert to fraction form
    239,801.48/359,702.08 = 71,321.12/x
  3. Step 3: Cross multiply
    239,801.48x = 359,702.08 × 71,321.12
  4. Step 4: Simplify right side
    239,801.48x = 25,654,355,211.93
  5. Step 5: Solve for x
    x = 25,654,355,211.93/239,801.48
  6. Step 6: Final answer
    x = 106,981.64

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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.