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Finding the Fourth Proportional to 240,062.81, 331,282.79 and 131,164.82

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Solution

The fourth proportional to 240,062.81, 331,282.79 and 131,164.82 is: 181,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,062.81 : 331,282.79 = 131,164.82 : x
  2. Step 2: Convert to fraction form
    240,062.81/331,282.79 = 131,164.82/x
  3. Step 3: Cross multiply
    240,062.81x = 331,282.79 × 131,164.82
  4. Step 4: Simplify right side
    240,062.81x = 43,452,645,863.03
  5. Step 5: Solve for x
    x = 43,452,645,863.03/240,062.81
  6. Step 6: Final answer
    x = 181,005.32

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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.