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Finding the Fourth Proportional to 325,568.60, 487,964.10 and 167,715.80

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Solution

The fourth proportional to 325,568.60, 487,964.10 and 167,715.80 is: 251,373.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,568.60 : 487,964.10 = 167,715.80 : x
  2. Step 2: Convert to fraction form
    325,568.60/487,964.10 = 167,715.80/x
  3. Step 3: Cross multiply
    325,568.60x = 487,964.10 × 167,715.80
  4. Step 4: Simplify right side
    325,568.60x = 81,839,289,402.78
  5. Step 5: Solve for x
    x = 81,839,289,402.78/325,568.60
  6. Step 6: Final answer
    x = 251,373.41

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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.