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Finding the Fourth Proportional to 216,040.80, 324,061.20 and 127,467.30

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Solution

The fourth proportional to 216,040.80, 324,061.20 and 127,467.30 is: 191,200.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,040.80 : 324,061.20 = 127,467.30 : x
  2. Step 2: Convert to fraction form
    216,040.80/324,061.20 = 127,467.30/x
  3. Step 3: Cross multiply
    216,040.80x = 324,061.20 × 127,467.30
  4. Step 4: Simplify right side
    216,040.80x = 41,307,206,198.76
  5. Step 5: Solve for x
    x = 41,307,206,198.76/216,040.80
  6. Step 6: Final answer
    x = 191,200.95

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1.5x scale

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.