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Finding the Fourth Proportional to 298,628.80, 448,024.80 and 88,266.56

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Solution

The fourth proportional to 298,628.80, 448,024.80 and 88,266.56 is: 132,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,628.80 : 448,024.80 = 88,266.56 : x
  2. Step 2: Convert to fraction form
    298,628.80/448,024.80 = 88,266.56/x
  3. Step 3: Cross multiply
    298,628.80x = 448,024.80 × 88,266.56
  4. Step 4: Simplify right side
    298,628.80x = 39,545,607,890.69
  5. Step 5: Solve for x
    x = 39,545,607,890.69/298,628.80
  6. Step 6: Final answer
    x = 132,423.96

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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.