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Finding the Fourth Proportional to 126,164.88, 174,107.42 and 68,804.31

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Solution

The fourth proportional to 126,164.88, 174,107.42 and 68,804.31 is: 94,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,164.88 : 174,107.42 = 68,804.31 : x
  2. Step 2: Convert to fraction form
    126,164.88/174,107.42 = 68,804.31/x
  3. Step 3: Cross multiply
    126,164.88x = 174,107.42 × 68,804.31
  4. Step 4: Simplify right side
    126,164.88x = 11,979,340,898.98
  5. Step 5: Solve for x
    x = 11,979,340,898.98/126,164.88
  6. Step 6: Final answer
    x = 94,949.89

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1.5x scale

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.