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Finding the Fourth Proportional to 216,846.40, 325,010.40 and 111,611.20

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Solution

The fourth proportional to 216,846.40, 325,010.40 and 111,611.20 is: 167,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,846.40 : 325,010.40 = 111,611.20 : x
  2. Step 2: Convert to fraction form
    216,846.40/325,010.40 = 111,611.20/x
  3. Step 3: Cross multiply
    216,846.40x = 325,010.40 × 111,611.20
  4. Step 4: Simplify right side
    216,846.40x = 36,274,800,756.48
  5. Step 5: Solve for x
    x = 36,274,800,756.48/216,846.40
  6. Step 6: Final answer
    x = 167,283.39

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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.