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Finding the Fourth Proportional to 220,975.60, 331,578.60 and 96,329.20

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Solution

The fourth proportional to 220,975.60, 331,578.60 and 96,329.20 is: 144,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,975.60 : 331,578.60 = 96,329.20 : x
  2. Step 2: Convert to fraction form
    220,975.60/331,578.60 = 96,329.20/x
  3. Step 3: Cross multiply
    220,975.60x = 331,578.60 × 96,329.20
  4. Step 4: Simplify right side
    220,975.60x = 31,940,701,275.12
  5. Step 5: Solve for x
    x = 31,940,701,275.12/220,975.60
  6. Step 6: Final answer
    x = 144,544.02

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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.