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Finding the Fourth Proportional to 349,324.80, 524,217.60 and 127,708.80

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Solution

The fourth proportional to 349,324.80, 524,217.60 and 127,708.80 is: 191,647.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,324.80 : 524,217.60 = 127,708.80 : x
  2. Step 2: Convert to fraction form
    349,324.80/524,217.60 = 127,708.80/x
  3. Step 3: Cross multiply
    349,324.80x = 524,217.60 × 127,708.80
  4. Step 4: Simplify right side
    349,324.80x = 66,947,200,634.88
  5. Step 5: Solve for x
    x = 66,947,200,634.88/349,324.80
  6. Step 6: Final answer
    x = 191,647.43

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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.