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Finding the Fourth Proportional to 188,570.60, 260,238.66 and 103,694.12

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Solution

The fourth proportional to 188,570.60, 260,238.66 and 103,694.12 is: 143,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,570.60 : 260,238.66 = 103,694.12 : x
  2. Step 2: Convert to fraction form
    188,570.60/260,238.66 = 103,694.12/x
  3. Step 3: Cross multiply
    188,570.60x = 260,238.66 × 103,694.12
  4. Step 4: Simplify right side
    188,570.60x = 26,985,218,838.68
  5. Step 5: Solve for x
    x = 26,985,218,838.68/188,570.60
  6. Step 6: Final answer
    x = 143,104.06

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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.