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Finding the Fourth Proportional to 111,781.05, 167,305.05 and 61,102.44

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Solution

The fourth proportional to 111,781.05, 167,305.05 and 61,102.44 is: 91,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,781.05 : 167,305.05 = 61,102.44 : x
  2. Step 2: Convert to fraction form
    111,781.05/167,305.05 = 61,102.44/x
  3. Step 3: Cross multiply
    111,781.05x = 167,305.05 × 61,102.44
  4. Step 4: Simplify right side
    111,781.05x = 10,222,746,779.32
  5. Step 5: Solve for x
    x = 10,222,746,779.32/111,781.05
  6. Step 6: Final answer
    x = 91,453.31

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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.