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Finding the Fourth Proportional to 324,326.88, 486,366.24 and 155,800.32

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Solution

The fourth proportional to 324,326.88, 486,366.24 and 155,800.32 is: 233,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,326.88 : 486,366.24 = 155,800.32 : x
  2. Step 2: Convert to fraction form
    324,326.88/486,366.24 = 155,800.32/x
  3. Step 3: Cross multiply
    324,326.88x = 486,366.24 × 155,800.32
  4. Step 4: Simplify right side
    324,326.88x = 75,776,015,829.20
  5. Step 5: Solve for x
    x = 75,776,015,829.20/324,326.88
  6. Step 6: Final answer
    x = 233,640.87

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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.