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Finding the Fourth Proportional to 151,687.16, 227,531.98 and 99,427.56

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Solution

The fourth proportional to 151,687.16, 227,531.98 and 99,427.56 is: 149,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,687.16 : 227,531.98 = 99,427.56 : x
  2. Step 2: Convert to fraction form
    151,687.16/227,531.98 = 99,427.56/x
  3. Step 3: Cross multiply
    151,687.16x = 227,531.98 × 99,427.56
  4. Step 4: Simplify right side
    151,687.16x = 22,622,949,593.37
  5. Step 5: Solve for x
    x = 22,622,949,593.37/151,687.16
  6. Step 6: Final answer
    x = 149,142.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.