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Finding the Fourth Proportional to 115,240.50, 172,889.91 and 32,134.50

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Solution

The fourth proportional to 115,240.50, 172,889.91 and 32,134.50 is: 48,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,240.50 : 172,889.91 = 32,134.50 : x
  2. Step 2: Convert to fraction form
    115,240.50/172,889.91 = 32,134.50/x
  3. Step 3: Cross multiply
    115,240.50x = 172,889.91 × 32,134.50
  4. Step 4: Simplify right side
    115,240.50x = 5,555,730,812.90
  5. Step 5: Solve for x
    x = 5,555,730,812.90/115,240.50
  6. Step 6: Final answer
    x = 48,209.88

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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.