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Finding the Fourth Proportional to 188,969.02, 260,811.24 and 108,423.22

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Solution

The fourth proportional to 188,969.02, 260,811.24 and 108,423.22 is: 149,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,969.02 : 260,811.24 = 108,423.22 : x
  2. Step 2: Convert to fraction form
    188,969.02/260,811.24 = 108,423.22/x
  3. Step 3: Cross multiply
    188,969.02x = 260,811.24 × 108,423.22
  4. Step 4: Simplify right side
    188,969.02x = 28,277,994,452.99
  5. Step 5: Solve for x
    x = 28,277,994,452.99/188,969.02
  6. Step 6: Final answer
    x = 149,643.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.