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Finding the Fourth Proportional to 267,878.90, 369,695.56 and 147,040.65

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Solution

The fourth proportional to 267,878.90, 369,695.56 and 147,040.65 is: 202,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,878.90 : 369,695.56 = 147,040.65 : x
  2. Step 2: Convert to fraction form
    267,878.90/369,695.56 = 147,040.65/x
  3. Step 3: Cross multiply
    267,878.90x = 369,695.56 × 147,040.65
  4. Step 4: Simplify right side
    267,878.90x = 54,360,275,352.61
  5. Step 5: Solve for x
    x = 54,360,275,352.61/267,878.90
  6. Step 6: Final answer
    x = 202,928.55

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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.