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Finding the Fourth Proportional to 248,404.40, 372,853.80 and 115,314.80

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Solution

The fourth proportional to 248,404.40, 372,853.80 and 115,314.80 is: 173,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,404.40 : 372,853.80 = 115,314.80 : x
  2. Step 2: Convert to fraction form
    248,404.40/372,853.80 = 115,314.80/x
  3. Step 3: Cross multiply
    248,404.40x = 372,853.80 × 115,314.80
  4. Step 4: Simplify right side
    248,404.40x = 42,995,561,376.24
  5. Step 5: Solve for x
    x = 42,995,561,376.24/248,404.40
  6. Step 6: Final answer
    x = 173,086.96

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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.