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Finding the Fourth Proportional to 269,080.92, 371,336.22 and 154,359.72

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Solution

The fourth proportional to 269,080.92, 371,336.22 and 154,359.72 is: 213,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,080.92 : 371,336.22 = 154,359.72 : x
  2. Step 2: Convert to fraction form
    269,080.92/371,336.22 = 154,359.72/x
  3. Step 3: Cross multiply
    269,080.92x = 371,336.22 × 154,359.72
  4. Step 4: Simplify right side
    269,080.92x = 57,319,354,945.06
  5. Step 5: Solve for x
    x = 57,319,354,945.06/269,080.92
  6. Step 6: Final answer
    x = 213,019.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.