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Finding the Fourth Proportional to 298,733.20, 448,099.80 and 88,373.20

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Solution

The fourth proportional to 298,733.20, 448,099.80 and 88,373.20 is: 132,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,733.20 : 448,099.80 = 88,373.20 : x
  2. Step 2: Convert to fraction form
    298,733.20/448,099.80 = 88,373.20/x
  3. Step 3: Cross multiply
    298,733.20x = 448,099.80 × 88,373.20
  4. Step 4: Simplify right side
    298,733.20x = 39,600,013,245.36
  5. Step 5: Solve for x
    x = 39,600,013,245.36/298,733.20
  6. Step 6: Final answer
    x = 132,559.80

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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.