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Finding the Fourth Proportional to 121,048.70, 167,067.60 and 70,062.80

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Solution

The fourth proportional to 121,048.70, 167,067.60 and 70,062.80 is: 96,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,048.70 : 167,067.60 = 70,062.80 : x
  2. Step 2: Convert to fraction form
    121,048.70/167,067.60 = 70,062.80/x
  3. Step 3: Cross multiply
    121,048.70x = 167,067.60 × 70,062.80
  4. Step 4: Simplify right side
    121,048.70x = 11,705,223,845.28
  5. Step 5: Solve for x
    x = 11,705,223,845.28/121,048.70
  6. Step 6: Final answer
    x = 96,698.47

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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.