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Finding the Fourth Proportional to 348,156.88, 522,468.72 and 126,540.88

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Solution

The fourth proportional to 348,156.88, 522,468.72 and 126,540.88 is: 189,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,156.88 : 522,468.72 = 126,540.88 : x
  2. Step 2: Convert to fraction form
    348,156.88/522,468.72 = 126,540.88/x
  3. Step 3: Cross multiply
    348,156.88x = 522,468.72 × 126,540.88
  4. Step 4: Simplify right side
    348,156.88x = 66,113,651,601.27
  5. Step 5: Solve for x
    x = 66,113,651,601.27/348,156.88
  6. Step 6: Final answer
    x = 189,896.15

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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.