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Finding the Fourth Proportional to 363,370.88, 545,129.22 and 126,650

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Solution

The fourth proportional to 363,370.88, 545,129.22 and 126,650 is: 190,000.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,370.88 : 545,129.22 = 126,650 : x
  2. Step 2: Convert to fraction form
    363,370.88/545,129.22 = 126,650/x
  3. Step 3: Cross multiply
    363,370.88x = 545,129.22 × 126,650
  4. Step 4: Simplify right side
    363,370.88x = 69,040,615,713
  5. Step 5: Solve for x
    x = 69,040,615,713/363,370.88
  6. Step 6: Final answer
    x = 190,000.41

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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.