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Finding the Fourth Proportional to 136,556.50, 204,869.32 and 38,060.50

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Solution

The fourth proportional to 136,556.50, 204,869.32 and 38,060.50 is: 57,100.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,556.50 : 204,869.32 = 38,060.50 : x
  2. Step 2: Convert to fraction form
    136,556.50/204,869.32 = 38,060.50/x
  3. Step 3: Cross multiply
    136,556.50x = 204,869.32 × 38,060.50
  4. Step 4: Simplify right side
    136,556.50x = 7,797,428,753.86
  5. Step 5: Solve for x
    x = 7,797,428,753.86/136,556.50
  6. Step 6: Final answer
    x = 57,100.39

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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.