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Finding the Fourth Proportional to 324,061.20, 486,091.80 and 191,200.95

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Solution

The fourth proportional to 324,061.20, 486,091.80 and 191,200.95 is: 286,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,061.20 : 486,091.80 = 191,200.95 : x
  2. Step 2: Convert to fraction form
    324,061.20/486,091.80 = 191,200.95/x
  3. Step 3: Cross multiply
    324,061.20x = 486,091.80 × 191,200.95
  4. Step 4: Simplify right side
    324,061.20x = 92,941,213,947.21
  5. Step 5: Solve for x
    x = 92,941,213,947.21/324,061.20
  6. Step 6: Final answer
    x = 286,801.43

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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.