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Finding the Fourth Proportional to 393,177.60, 589,851.52 and 126,952.96

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Solution

The fourth proportional to 393,177.60, 589,851.52 and 126,952.96 is: 190,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,177.60 : 589,851.52 = 126,952.96 : x
  2. Step 2: Convert to fraction form
    393,177.60/589,851.52 = 126,952.96/x
  3. Step 3: Cross multiply
    393,177.60x = 589,851.52 × 126,952.96
  4. Step 4: Simplify right side
    393,177.60x = 74,883,396,424.50
  5. Step 5: Solve for x
    x = 74,883,396,424.50/393,177.60
  6. Step 6: Final answer
    x = 190,456.92

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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.