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Finding the Fourth Proportional to 111,608.58, 167,416.38 and 40,545.66

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Solution

The fourth proportional to 111,608.58, 167,416.38 and 40,545.66 is: 60,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,608.58 : 167,416.38 = 40,545.66 : x
  2. Step 2: Convert to fraction form
    111,608.58/167,416.38 = 40,545.66/x
  3. Step 3: Cross multiply
    111,608.58x = 167,416.38 × 40,545.66
  4. Step 4: Simplify right side
    111,608.58x = 6,788,007,621.91
  5. Step 5: Solve for x
    x = 6,788,007,621.91/111,608.58
  6. Step 6: Final answer
    x = 60,819.77

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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.