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Finding the Fourth Proportional to 272,042.64, 408,063.41 and 72,363.24

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Solution

The fourth proportional to 272,042.64, 408,063.41 and 72,363.24 is: 108,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,042.64 : 408,063.41 = 72,363.24 : x
  2. Step 2: Convert to fraction form
    272,042.64/408,063.41 = 72,363.24/x
  3. Step 3: Cross multiply
    272,042.64x = 408,063.41 × 72,363.24
  4. Step 4: Simplify right side
    272,042.64x = 29,528,790,111.23
  5. Step 5: Solve for x
    x = 29,528,790,111.23/272,042.64
  6. Step 6: Final answer
    x = 108,544.71

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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.