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Finding the Fourth Proportional to 111,604.74, 154,015.67 and 60,617.96

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Solution

The fourth proportional to 111,604.74, 154,015.67 and 60,617.96 is: 83,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,604.74 : 154,015.67 = 60,617.96 : x
  2. Step 2: Convert to fraction form
    111,604.74/154,015.67 = 60,617.96/x
  3. Step 3: Cross multiply
    111,604.74x = 154,015.67 × 60,617.96
  4. Step 4: Simplify right side
    111,604.74x = 9,336,115,723.43
  5. Step 5: Solve for x
    x = 9,336,115,723.43/111,604.74
  6. Step 6: Final answer
    x = 83,653.40

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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.