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Finding the Fourth Proportional to 243,789.92, 365,710.80 and 66,299.84

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Solution

The fourth proportional to 243,789.92, 365,710.80 and 66,299.84 is: 99,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,789.92 : 365,710.80 = 66,299.84 : x
  2. Step 2: Convert to fraction form
    243,789.92/365,710.80 = 66,299.84/x
  3. Step 3: Cross multiply
    243,789.92x = 365,710.80 × 66,299.84
  4. Step 4: Simplify right side
    243,789.92x = 24,246,567,526.27
  5. Step 5: Solve for x
    x = 24,246,567,526.27/243,789.92
  6. Step 6: Final answer
    x = 99,456.81

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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.