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Finding the Fourth Proportional to 298,789.66, 448,310.49 and 121,250.62

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Solution

The fourth proportional to 298,789.66, 448,310.49 and 121,250.62 is: 181,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,789.66 : 448,310.49 = 121,250.62 : x
  2. Step 2: Convert to fraction form
    298,789.66/448,310.49 = 121,250.62/x
  3. Step 3: Cross multiply
    298,789.66x = 448,310.49 × 121,250.62
  4. Step 4: Simplify right side
    298,789.66x = 54,357,924,865.00
  5. Step 5: Solve for x
    x = 54,357,924,865.00/298,789.66
  6. Step 6: Final answer
    x = 181,927.06

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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.