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Finding the Fourth Proportional to 188,811.84, 260,561.16 and 108,244.02

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Solution

The fourth proportional to 188,811.84, 260,561.16 and 108,244.02 is: 149,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,811.84 : 260,561.16 = 108,244.02 : x
  2. Step 2: Convert to fraction form
    188,811.84/260,561.16 = 108,244.02/x
  3. Step 3: Cross multiply
    188,811.84x = 260,561.16 × 108,244.02
  4. Step 4: Simplify right side
    188,811.84x = 28,204,187,414.26
  5. Step 5: Solve for x
    x = 28,204,187,414.26/188,811.84
  6. Step 6: Final answer
    x = 149,377.22

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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.