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Finding the Fourth Proportional to 298,722.42, 448,083.63 and 88,343.97

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Solution

The fourth proportional to 298,722.42, 448,083.63 and 88,343.97 is: 132,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,722.42 : 448,083.63 = 88,343.97 : x
  2. Step 2: Convert to fraction form
    298,722.42/448,083.63 = 88,343.97/x
  3. Step 3: Cross multiply
    298,722.42x = 448,083.63 × 88,343.97
  4. Step 4: Simplify right side
    298,722.42x = 39,585,486,766.21
  5. Step 5: Solve for x
    x = 39,585,486,766.21/298,722.42
  6. Step 6: Final answer
    x = 132,515.96

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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.