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Finding the Fourth Proportional to 66,122.31, 98,964.06 and 60,212.79

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Solution

The fourth proportional to 66,122.31, 98,964.06 and 60,212.79 is: 90,119.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,122.31 : 98,964.06 = 60,212.79 : x
  2. Step 2: Convert to fraction form
    66,122.31/98,964.06 = 60,212.79/x
  3. Step 3: Cross multiply
    66,122.31x = 98,964.06 × 60,212.79
  4. Step 4: Simplify right side
    66,122.31x = 5,958,902,162.33
  5. Step 5: Solve for x
    x = 5,958,902,162.33/66,122.31
  6. Step 6: Final answer
    x = 90,119.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.