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Finding the Fourth Proportional to 121,089.80, 167,085.01 and 70,092.54

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Solution

The fourth proportional to 121,089.80, 167,085.01 and 70,092.54 is: 96,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,089.80 : 167,085.01 = 70,092.54 : x
  2. Step 2: Convert to fraction form
    121,089.80/167,085.01 = 70,092.54/x
  3. Step 3: Cross multiply
    121,089.80x = 167,085.01 × 70,092.54
  4. Step 4: Simplify right side
    121,089.80x = 11,711,412,834.44
  5. Step 5: Solve for x
    x = 11,711,412,834.44/121,089.80
  6. Step 6: Final answer
    x = 96,716.76

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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.