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Finding the Fourth Proportional to 248,432.73, 372,657.87 and 79,930.32

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Solution

The fourth proportional to 248,432.73, 372,657.87 and 79,930.32 is: 119,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,432.73 : 372,657.87 = 79,930.32 : x
  2. Step 2: Convert to fraction form
    248,432.73/372,657.87 = 79,930.32/x
  3. Step 3: Cross multiply
    248,432.73x = 372,657.87 × 79,930.32
  4. Step 4: Simplify right side
    248,432.73x = 29,786,662,799.62
  5. Step 5: Solve for x
    x = 29,786,662,799.62/248,432.73
  6. Step 6: Final answer
    x = 119,898.30

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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.