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Finding the Fourth Proportional to 325,532.60, 487,910.10 and 167,679.80

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Solution

The fourth proportional to 325,532.60, 487,910.10 and 167,679.80 is: 251,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,532.60 : 487,910.10 = 167,679.80 : x
  2. Step 2: Convert to fraction form
    325,532.60/487,910.10 = 167,679.80/x
  3. Step 3: Cross multiply
    325,532.60x = 487,910.10 × 167,679.80
  4. Step 4: Simplify right side
    325,532.60x = 81,812,667,985.98
  5. Step 5: Solve for x
    x = 81,812,667,985.98/325,532.60
  6. Step 6: Final answer
    x = 251,319.43

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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.