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Finding the Fourth Proportional to 215,867.01, 323,604.50 and 75,549.09

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Solution

The fourth proportional to 215,867.01, 323,604.50 and 75,549.09 is: 113,255.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,867.01 : 323,604.50 = 75,549.09 : x
  2. Step 2: Convert to fraction form
    215,867.01/323,604.50 = 75,549.09/x
  3. Step 3: Cross multiply
    215,867.01x = 323,604.50 × 75,549.09
  4. Step 4: Simplify right side
    215,867.01x = 24,448,025,117.16
  5. Step 5: Solve for x
    x = 24,448,025,117.16/215,867.01
  6. Step 6: Final answer
    x = 113,255.03

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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.