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Finding the Fourth Proportional to 111,940.85, 154,478.13 and 60,952.79

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Solution

The fourth proportional to 111,940.85, 154,478.13 and 60,952.79 is: 84,114.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,940.85 : 154,478.13 = 60,952.79 : x
  2. Step 2: Convert to fraction form
    111,940.85/154,478.13 = 60,952.79/x
  3. Step 3: Cross multiply
    111,940.85x = 154,478.13 × 60,952.79
  4. Step 4: Simplify right side
    111,940.85x = 9,415,873,017.48
  5. Step 5: Solve for x
    x = 9,415,873,017.48/111,940.85
  6. Step 6: Final answer
    x = 84,114.72

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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.