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Finding the Fourth Proportional to 136,287.66, 188,026.51 and 136,077.47

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Solution

The fourth proportional to 136,287.66, 188,026.51 and 136,077.47 is: 187,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,287.66 : 188,026.51 = 136,077.47 : x
  2. Step 2: Convert to fraction form
    136,287.66/188,026.51 = 136,077.47/x
  3. Step 3: Cross multiply
    136,287.66x = 188,026.51 × 136,077.47
  4. Step 4: Simplify right side
    136,287.66x = 25,586,171,773.73
  5. Step 5: Solve for x
    x = 25,586,171,773.73/136,287.66
  6. Step 6: Final answer
    x = 187,736.53

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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.