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Finding the Fourth Proportional to 172,195.60, 257,564.40 and 154,553.80

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Solution

The fourth proportional to 172,195.60, 257,564.40 and 154,553.80 is: 231,176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,195.60 : 257,564.40 = 154,553.80 : x
  2. Step 2: Convert to fraction form
    172,195.60/257,564.40 = 154,553.80/x
  3. Step 3: Cross multiply
    172,195.60x = 257,564.40 × 154,553.80
  4. Step 4: Simplify right side
    172,195.60x = 39,807,556,764.72
  5. Step 5: Solve for x
    x = 39,807,556,764.72/172,195.60
  6. Step 6: Final answer
    x = 231,176.39

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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.