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Finding the Fourth Proportional to 325,367.16, 487,869.67 and 100,663.84

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Solution

The fourth proportional to 325,367.16, 487,869.67 and 100,663.84 is: 150,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,367.16 : 487,869.67 = 100,663.84 : x
  2. Step 2: Convert to fraction form
    325,367.16/487,869.67 = 100,663.84/x
  3. Step 3: Cross multiply
    325,367.16x = 487,869.67 × 100,663.84
  4. Step 4: Simplify right side
    325,367.16x = 49,110,834,401.73
  5. Step 5: Solve for x
    x = 49,110,834,401.73/325,367.16
  6. Step 6: Final answer
    x = 150,939.74

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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.