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Finding the Fourth Proportional to 299,295.75, 449,017.61 and 88,932.81

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Solution

The fourth proportional to 299,295.75, 449,017.61 and 88,932.81 is: 133,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,295.75 : 449,017.61 = 88,932.81 : x
  2. Step 2: Convert to fraction form
    299,295.75/449,017.61 = 88,932.81/x
  3. Step 3: Cross multiply
    299,295.75x = 449,017.61 × 88,932.81
  4. Step 4: Simplify right side
    299,295.75x = 39,932,397,352.12
  5. Step 5: Solve for x
    x = 39,932,397,352.12/299,295.75
  6. Step 6: Final answer
    x = 133,421.20

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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.