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Finding the Fourth Proportional to 248,751.20, 373,016.72 and 71,217.76

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Solution

The fourth proportional to 248,751.20, 373,016.72 and 71,217.76 is: 106,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,751.20 : 373,016.72 = 71,217.76 : x
  2. Step 2: Convert to fraction form
    248,751.20/373,016.72 = 71,217.76/x
  3. Step 3: Cross multiply
    248,751.20x = 373,016.72 × 71,217.76
  4. Step 4: Simplify right side
    248,751.20x = 26,565,415,240.95
  5. Step 5: Solve for x
    x = 26,565,415,240.95/248,751.20
  6. Step 6: Final answer
    x = 106,795.12

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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.