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Finding the Fourth Proportional to 216,061.60, 324,092.40 and 110,891.20

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Solution

The fourth proportional to 216,061.60, 324,092.40 and 110,891.20 is: 166,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,061.60 : 324,092.40 = 110,891.20 : x
  2. Step 2: Convert to fraction form
    216,061.60/324,092.40 = 110,891.20/x
  3. Step 3: Cross multiply
    216,061.60x = 324,092.40 × 110,891.20
  4. Step 4: Simplify right side
    216,061.60x = 35,938,995,146.88
  5. Step 5: Solve for x
    x = 35,938,995,146.88/216,061.60
  6. Step 6: Final answer
    x = 166,336.80

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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.