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Finding the Fourth Proportional to 111,692.17, 154,135.06 and 60,704.79

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Solution

The fourth proportional to 111,692.17, 154,135.06 and 60,704.79 is: 83,772.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,692.17 : 154,135.06 = 60,704.79 : x
  2. Step 2: Convert to fraction form
    111,692.17/154,135.06 = 60,704.79/x
  3. Step 3: Cross multiply
    111,692.17x = 154,135.06 × 60,704.79
  4. Step 4: Simplify right side
    111,692.17x = 9,356,736,448.94
  5. Step 5: Solve for x
    x = 9,356,736,448.94/111,692.17
  6. Step 6: Final answer
    x = 83,772.54

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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.