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Finding the Fourth Proportional to 111,705.73, 167,505.93 and 40,578.22

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Solution

The fourth proportional to 111,705.73, 167,505.93 and 40,578.22 is: 60,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,705.73 : 167,505.93 = 40,578.22 : x
  2. Step 2: Convert to fraction form
    111,705.73/167,505.93 = 40,578.22/x
  3. Step 3: Cross multiply
    111,705.73x = 167,505.93 × 40,578.22
  4. Step 4: Simplify right side
    111,705.73x = 6,797,092,478.84
  5. Step 5: Solve for x
    x = 6,797,092,478.84/111,705.73
  6. Step 6: Final answer
    x = 60,848.20

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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.