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Finding the Fourth Proportional to 111,650.77, 154,069.11 and 63,893.17

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Solution

The fourth proportional to 111,650.77, 154,069.11 and 63,893.17 is: 88,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,650.77 : 154,069.11 = 63,893.17 : x
  2. Step 2: Convert to fraction form
    111,650.77/154,069.11 = 63,893.17/x
  3. Step 3: Cross multiply
    111,650.77x = 154,069.11 × 63,893.17
  4. Step 4: Simplify right side
    111,650.77x = 9,843,963,836.98
  5. Step 5: Solve for x
    x = 9,843,963,836.98/111,650.77
  6. Step 6: Final answer
    x = 88,167.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.