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Finding the Fourth Proportional to 82,822.60, 124,233.90 and 27,418.60

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Solution

The fourth proportional to 82,822.60, 124,233.90 and 27,418.60 is: 41,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,822.60 : 124,233.90 = 27,418.60 : x
  2. Step 2: Convert to fraction form
    82,822.60/124,233.90 = 27,418.60/x
  3. Step 3: Cross multiply
    82,822.60x = 124,233.90 × 27,418.60
  4. Step 4: Simplify right side
    82,822.60x = 3,406,319,610.54
  5. Step 5: Solve for x
    x = 3,406,319,610.54/82,822.60
  6. Step 6: Final answer
    x = 41,127.90

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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.