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Finding the Fourth Proportional to 356,837.92, 535,229.52 and 132,092.80

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Solution

The fourth proportional to 356,837.92, 535,229.52 and 132,092.80 is: 198,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,837.92 : 535,229.52 = 132,092.80 : x
  2. Step 2: Convert to fraction form
    356,837.92/535,229.52 = 132,092.80/x
  3. Step 3: Cross multiply
    356,837.92x = 535,229.52 × 132,092.80
  4. Step 4: Simplify right side
    356,837.92x = 70,699,965,939.46
  5. Step 5: Solve for x
    x = 70,699,965,939.46/356,837.92
  6. Step 6: Final answer
    x = 198,129.07

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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.