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Finding the Fourth Proportional to 239,888.81, 331,047.96 and 132,456.81

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Solution

The fourth proportional to 239,888.81, 331,047.96 and 132,456.81 is: 182,791.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,888.81 : 331,047.96 = 132,456.81 : x
  2. Step 2: Convert to fraction form
    239,888.81/331,047.96 = 132,456.81/x
  3. Step 3: Cross multiply
    239,888.81x = 331,047.96 × 132,456.81
  4. Step 4: Simplify right side
    239,888.81x = 43,849,554,421.08
  5. Step 5: Solve for x
    x = 43,849,554,421.08/239,888.81
  6. Step 6: Final answer
    x = 182,791.17

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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.