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Finding the Fourth Proportional to 231,456.80, 346,504.80 and 172,553.60

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Solution

The fourth proportional to 231,456.80, 346,504.80 and 172,553.60 is: 258,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,456.80 : 346,504.80 = 172,553.60 : x
  2. Step 2: Convert to fraction form
    231,456.80/346,504.80 = 172,553.60/x
  3. Step 3: Cross multiply
    231,456.80x = 346,504.80 × 172,553.60
  4. Step 4: Simplify right side
    231,456.80x = 59,790,650,657.28
  5. Step 5: Solve for x
    x = 59,790,650,657.28/231,456.80
  6. Step 6: Final answer
    x = 258,323.15

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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.