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Finding the Fourth Proportional to 298,887.76, 448,337.78 and 121,273.29

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Solution

The fourth proportional to 298,887.76, 448,337.78 and 121,273.29 is: 181,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,887.76 : 448,337.78 = 121,273.29 : x
  2. Step 2: Convert to fraction form
    298,887.76/448,337.78 = 121,273.29/x
  3. Step 3: Cross multiply
    298,887.76x = 448,337.78 × 121,273.29
  4. Step 4: Simplify right side
    298,887.76x = 54,371,395,370.21
  5. Step 5: Solve for x
    x = 54,371,395,370.21/298,887.76
  6. Step 6: Final answer
    x = 181,912.42

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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.