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Finding the Fourth Proportional to 216,611.49, 324,918.15 and 142,202.46

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Solution

The fourth proportional to 216,611.49, 324,918.15 and 142,202.46 is: 213,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,611.49 : 324,918.15 = 142,202.46 : x
  2. Step 2: Convert to fraction form
    216,611.49/324,918.15 = 142,202.46/x
  3. Step 3: Cross multiply
    216,611.49x = 324,918.15 × 142,202.46
  4. Step 4: Simplify right side
    216,611.49x = 46,204,160,228.65
  5. Step 5: Solve for x
    x = 46,204,160,228.65/216,611.49
  6. Step 6: Final answer
    x = 213,304.29

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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.