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Finding the Fourth Proportional to 112,651.00, 168,967.85 and 69,965.09

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Solution

The fourth proportional to 112,651.00, 168,967.85 and 69,965.09 is: 104,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,651.00 : 168,967.85 = 69,965.09 : x
  2. Step 2: Convert to fraction form
    112,651.00/168,967.85 = 69,965.09/x
  3. Step 3: Cross multiply
    112,651.00x = 168,967.85 × 69,965.09
  4. Step 4: Simplify right side
    112,651.00x = 11,821,850,943.32
  5. Step 5: Solve for x
    x = 11,821,850,943.32/112,651.00
  6. Step 6: Final answer
    x = 104,942.26

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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.