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Finding the Fourth Proportional to 188,572.60, 260,241.42 and 103,696.12

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Solution

The fourth proportional to 188,572.60, 260,241.42 and 103,696.12 is: 143,106.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,572.60 : 260,241.42 = 103,696.12 : x
  2. Step 2: Convert to fraction form
    188,572.60/260,241.42 = 103,696.12/x
  3. Step 3: Cross multiply
    188,572.60x = 260,241.42 × 103,696.12
  4. Step 4: Simplify right side
    188,572.60x = 26,986,025,517.29
  5. Step 5: Solve for x
    x = 26,986,025,517.29/188,572.60
  6. Step 6: Final answer
    x = 143,106.82

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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.