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Finding the Fourth Proportional to 272,057.58, 375,438.78 and 149,549.13

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Solution

The fourth proportional to 272,057.58, 375,438.78 and 149,549.13 is: 206,377.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,057.58 : 375,438.78 = 149,549.13 : x
  2. Step 2: Convert to fraction form
    272,057.58/375,438.78 = 149,549.13/x
  3. Step 3: Cross multiply
    272,057.58x = 375,438.78 × 149,549.13
  4. Step 4: Simplify right side
    272,057.58x = 56,146,542,917.26
  5. Step 5: Solve for x
    x = 56,146,542,917.26/272,057.58
  6. Step 6: Final answer
    x = 206,377.43

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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.