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Finding the Fourth Proportional to 216,496.80, 324,745.20 and 177,616.80

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Solution

The fourth proportional to 216,496.80, 324,745.20 and 177,616.80 is: 266,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,496.80 : 324,745.20 = 177,616.80 : x
  2. Step 2: Convert to fraction form
    216,496.80/324,745.20 = 177,616.80/x
  3. Step 3: Cross multiply
    216,496.80x = 324,745.20 × 177,616.80
  4. Step 4: Simplify right side
    216,496.80x = 57,680,203,239.36
  5. Step 5: Solve for x
    x = 57,680,203,239.36/216,496.80
  6. Step 6: Final answer
    x = 266,425.20

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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.