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Finding the Fourth Proportional to 248,658.80, 372,948.60 and 82,446.80

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Solution

The fourth proportional to 248,658.80, 372,948.60 and 82,446.80 is: 123,657.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,658.80 : 372,948.60 = 82,446.80 : x
  2. Step 2: Convert to fraction form
    248,658.80/372,948.60 = 82,446.80/x
  3. Step 3: Cross multiply
    248,658.80x = 372,948.60 × 82,446.80
  4. Step 4: Simplify right side
    248,658.80x = 30,748,418,634.48
  5. Step 5: Solve for x
    x = 30,748,418,634.48/248,658.80
  6. Step 6: Final answer
    x = 123,657.07

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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.