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Finding the Fourth Proportional to 395,179.92, 592,769.88 and 145,861.92

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Solution

The fourth proportional to 395,179.92, 592,769.88 and 145,861.92 is: 218,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,179.92 : 592,769.88 = 145,861.92 : x
  2. Step 2: Convert to fraction form
    395,179.92/592,769.88 = 145,861.92/x
  3. Step 3: Cross multiply
    395,179.92x = 592,769.88 × 145,861.92
  4. Step 4: Simplify right side
    395,179.92x = 86,462,552,814.97
  5. Step 5: Solve for x
    x = 86,462,552,814.97/395,179.92
  6. Step 6: Final answer
    x = 218,792.88

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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.