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Finding the Fourth Proportional to 111,598.89, 154,033.01 and 63,879.76

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Solution

The fourth proportional to 111,598.89, 154,033.01 and 63,879.76 is: 88,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,598.89 : 154,033.01 = 63,879.76 : x
  2. Step 2: Convert to fraction form
    111,598.89/154,033.01 = 63,879.76/x
  3. Step 3: Cross multiply
    111,598.89x = 154,033.01 × 63,879.76
  4. Step 4: Simplify right side
    111,598.89x = 9,839,591,710.88
  5. Step 5: Solve for x
    x = 9,839,591,710.88/111,598.89
  6. Step 6: Final answer
    x = 88,169.26

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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.