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Finding the Fourth Proportional to 188,890.51, 260,670.62 and 104,010.61

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Solution

The fourth proportional to 188,890.51, 260,670.62 and 104,010.61 is: 143,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,890.51 : 260,670.62 = 104,010.61 : x
  2. Step 2: Convert to fraction form
    188,890.51/260,670.62 = 104,010.61/x
  3. Step 3: Cross multiply
    188,890.51x = 260,670.62 × 104,010.61
  4. Step 4: Simplify right side
    188,890.51x = 27,112,510,195.28
  5. Step 5: Solve for x
    x = 27,112,510,195.28/188,890.51
  6. Step 6: Final answer
    x = 143,535.59

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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.