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Finding the Fourth Proportional to 111,302.92, 166,866.54 and 55,162.36

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Solution

The fourth proportional to 111,302.92, 166,866.54 and 55,162.36 is: 82,700.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,302.92 : 166,866.54 = 55,162.36 : x
  2. Step 2: Convert to fraction form
    111,302.92/166,866.54 = 55,162.36/x
  3. Step 3: Cross multiply
    111,302.92x = 166,866.54 × 55,162.36
  4. Step 4: Simplify right side
    111,302.92x = 9,204,752,151.43
  5. Step 5: Solve for x
    x = 9,204,752,151.43/111,302.92
  6. Step 6: Final answer
    x = 82,700.01

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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.