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Finding the Fourth Proportional to 350,939.52, 526,331.52 and 140,520.96

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Solution

The fourth proportional to 350,939.52, 526,331.52 and 140,520.96 is: 210,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,939.52 : 526,331.52 = 140,520.96 : x
  2. Step 2: Convert to fraction form
    350,939.52/526,331.52 = 140,520.96/x
  3. Step 3: Cross multiply
    350,939.52x = 526,331.52 × 140,520.96
  4. Step 4: Simplify right side
    350,939.52x = 73,960,610,468.66
  5. Step 5: Solve for x
    x = 73,960,610,468.66/350,939.52
  6. Step 6: Final answer
    x = 210,750.30

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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.