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Finding the Fourth Proportional to 267,641.72, 369,378.38 and 154,464.47

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Solution

The fourth proportional to 267,641.72, 369,378.38 and 154,464.47 is: 213,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,641.72 : 369,378.38 = 154,464.47 : x
  2. Step 2: Convert to fraction form
    267,641.72/369,378.38 = 154,464.47/x
  3. Step 3: Cross multiply
    267,641.72x = 369,378.38 × 154,464.47
  4. Step 4: Simplify right side
    267,641.72x = 57,055,834,751.73
  5. Step 5: Solve for x
    x = 57,055,834,751.73/267,641.72
  6. Step 6: Final answer
    x = 213,179.90

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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.