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Finding the Fourth Proportional to 188,934.66, 260,728.67 and 104,051.12

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Solution

The fourth proportional to 188,934.66, 260,728.67 and 104,051.12 is: 143,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,934.66 : 260,728.67 = 104,051.12 : x
  2. Step 2: Convert to fraction form
    188,934.66/260,728.67 = 104,051.12/x
  3. Step 3: Cross multiply
    188,934.66x = 260,728.67 × 104,051.12
  4. Step 4: Simplify right side
    188,934.66x = 27,129,109,086.09
  5. Step 5: Solve for x
    x = 27,129,109,086.09/188,934.66
  6. Step 6: Final answer
    x = 143,589.90

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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.