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Finding the Fourth Proportional to 248,698.64, 372,938.40 and 71,165.27

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Solution

The fourth proportional to 248,698.64, 372,938.40 and 71,165.27 is: 106,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,698.64 : 372,938.40 = 71,165.27 : x
  2. Step 2: Convert to fraction form
    248,698.64/372,938.40 = 71,165.27/x
  3. Step 3: Cross multiply
    248,698.64x = 372,938.40 × 71,165.27
  4. Step 4: Simplify right side
    248,698.64x = 26,540,260,064.68
  5. Step 5: Solve for x
    x = 26,540,260,064.68/248,698.64
  6. Step 6: Final answer
    x = 106,716.55

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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.