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Finding the Fourth Proportional to 111,763.13, 167,645.09 and 106,157.12

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Solution

The fourth proportional to 111,763.13, 167,645.09 and 106,157.12 is: 159,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,763.13 : 167,645.09 = 106,157.12 : x
  2. Step 2: Convert to fraction form
    111,763.13/167,645.09 = 106,157.12/x
  3. Step 3: Cross multiply
    111,763.13x = 167,645.09 × 106,157.12
  4. Step 4: Simplify right side
    111,763.13x = 17,796,719,363.71
  5. Step 5: Solve for x
    x = 17,796,719,363.71/111,763.13
  6. Step 6: Final answer
    x = 159,236.06

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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.