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Finding the Fourth Proportional to 207,129.97, 285,850.66 and 116,491.29

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Solution

The fourth proportional to 207,129.97, 285,850.66 and 116,491.29 is: 160,764.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,129.97 : 285,850.66 = 116,491.29 : x
  2. Step 2: Convert to fraction form
    207,129.97/285,850.66 = 116,491.29/x
  3. Step 3: Cross multiply
    207,129.97x = 285,850.66 × 116,491.29
  4. Step 4: Simplify right side
    207,129.97x = 33,299,112,117.59
  5. Step 5: Solve for x
    x = 33,299,112,117.59/207,129.97
  6. Step 6: Final answer
    x = 160,764.34

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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.