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Finding the Fourth Proportional to 270,113.56, 372,760.66 and 149,257.64

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Solution

The fourth proportional to 270,113.56, 372,760.66 and 149,257.64 is: 205,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,113.56 : 372,760.66 = 149,257.64 : x
  2. Step 2: Convert to fraction form
    270,113.56/372,760.66 = 149,257.64/x
  3. Step 3: Cross multiply
    270,113.56x = 372,760.66 × 149,257.64
  4. Step 4: Simplify right side
    270,113.56x = 55,637,376,396.44
  5. Step 5: Solve for x
    x = 55,637,376,396.44/270,113.56
  6. Step 6: Final answer
    x = 205,977.72

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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.