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Finding the Fourth Proportional to 392,867.61, 588,808.38 and 167,963.70

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Solution

The fourth proportional to 392,867.61, 588,808.38 and 167,963.70 is: 251,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,867.61 : 588,808.38 = 167,963.70 : x
  2. Step 2: Convert to fraction form
    392,867.61/588,808.38 = 167,963.70/x
  3. Step 3: Cross multiply
    392,867.61x = 588,808.38 × 167,963.70
  4. Step 4: Simplify right side
    392,867.61x = 98,898,434,095.81
  5. Step 5: Solve for x
    x = 98,898,434,095.81/392,867.61
  6. Step 6: Final answer
    x = 251,734.76

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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.