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Finding the Fourth Proportional to 193,298.92, 266,753.46 and 108,420.52

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Solution

The fourth proportional to 193,298.92, 266,753.46 and 108,420.52 is: 149,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,298.92 : 266,753.46 = 108,420.52 : x
  2. Step 2: Convert to fraction form
    193,298.92/266,753.46 = 108,420.52/x
  3. Step 3: Cross multiply
    193,298.92x = 266,753.46 × 108,420.52
  4. Step 4: Simplify right side
    193,298.92x = 28,921,548,845.00
  5. Step 5: Solve for x
    x = 28,921,548,845.00/193,298.92
  6. Step 6: Final answer
    x = 149,620.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.