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Finding the Fourth Proportional to 267,640.74, 369,317.61 and 154,499.94

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Solution

The fourth proportional to 267,640.74, 369,317.61 and 154,499.94 is: 213,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,640.74 : 369,317.61 = 154,499.94 : x
  2. Step 2: Convert to fraction form
    267,640.74/369,317.61 = 154,499.94/x
  3. Step 3: Cross multiply
    267,640.74x = 369,317.61 × 154,499.94
  4. Step 4: Simplify right side
    267,640.74x = 57,059,548,585.94
  5. Step 5: Solve for x
    x = 57,059,548,585.94/267,640.74
  6. Step 6: Final answer
    x = 213,194.56

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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.