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Finding the Fourth Proportional to 217,279.94, 325,839.98 and 75,089.30

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Solution

The fourth proportional to 217,279.94, 325,839.98 and 75,089.30 is: 112,606.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,279.94 : 325,839.98 = 75,089.30 : x
  2. Step 2: Convert to fraction form
    217,279.94/325,839.98 = 75,089.30/x
  3. Step 3: Cross multiply
    217,279.94x = 325,839.98 × 75,089.30
  4. Step 4: Simplify right side
    217,279.94x = 24,467,094,568.74
  5. Step 5: Solve for x
    x = 24,467,094,568.74/217,279.94
  6. Step 6: Final answer
    x = 112,606.32

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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.