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Finding the Fourth Proportional to 298,707.67, 448,061.51 and 88,329.21

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Solution

The fourth proportional to 298,707.67, 448,061.51 and 88,329.21 is: 132,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,707.67 : 448,061.51 = 88,329.21 : x
  2. Step 2: Convert to fraction form
    298,707.67/448,061.51 = 88,329.21/x
  3. Step 3: Cross multiply
    298,707.67x = 448,061.51 × 88,329.21
  4. Step 4: Simplify right side
    298,707.67x = 39,576,919,209.71
  5. Step 5: Solve for x
    x = 39,576,919,209.71/298,707.67
  6. Step 6: Final answer
    x = 132,493.82

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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.