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Finding the Fourth Proportional to 126,791.73, 174,972.59 and 70,203.11

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Solution

The fourth proportional to 126,791.73, 174,972.59 and 70,203.11 is: 96,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,791.73 : 174,972.59 = 70,203.11 : x
  2. Step 2: Convert to fraction form
    126,791.73/174,972.59 = 70,203.11/x
  3. Step 3: Cross multiply
    126,791.73x = 174,972.59 × 70,203.11
  4. Step 4: Simplify right side
    126,791.73x = 12,283,619,283.40
  5. Step 5: Solve for x
    x = 12,283,619,283.40/126,791.73
  6. Step 6: Final answer
    x = 96,880.29

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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.