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Finding the Fourth Proportional to 210,660.62, 315,926.66 and 110,766.62

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Solution

The fourth proportional to 210,660.62, 315,926.66 and 110,766.62 is: 166,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,660.62 : 315,926.66 = 110,766.62 : x
  2. Step 2: Convert to fraction form
    210,660.62/315,926.66 = 110,766.62/x
  3. Step 3: Cross multiply
    210,660.62x = 315,926.66 × 110,766.62
  4. Step 4: Simplify right side
    210,660.62x = 34,994,126,162.62
  5. Step 5: Solve for x
    x = 34,994,126,162.62/210,660.62
  6. Step 6: Final answer
    x = 166,116.13

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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.