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Finding the Fourth Proportional to 111,795.98, 167,497.13 and 105,136.56

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Solution

The fourth proportional to 111,795.98, 167,497.13 and 105,136.56 is: 157,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,795.98 : 167,497.13 = 105,136.56 : x
  2. Step 2: Convert to fraction form
    111,795.98/167,497.13 = 105,136.56/x
  3. Step 3: Cross multiply
    111,795.98x = 167,497.13 × 105,136.56
  4. Step 4: Simplify right side
    111,795.98x = 17,610,071,532.39
  5. Step 5: Solve for x
    x = 17,610,071,532.39/111,795.98
  6. Step 6: Final answer
    x = 157,519.73

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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.