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Finding the Fourth Proportional to 111,195, 153,449.64 and 60,894

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Solution

The fourth proportional to 111,195, 153,449.64 and 60,894 is: 84,034.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,195 : 153,449.64 = 60,894 : x
  2. Step 2: Convert to fraction form
    111,195/153,449.64 = 60,894/x
  3. Step 3: Cross multiply
    111,195x = 153,449.64 × 60,894
  4. Step 4: Simplify right side
    111,195x = 9,344,162,378.16
  5. Step 5: Solve for x
    x = 9,344,162,378.16/111,195
  6. Step 6: Final answer
    x = 84,034.02

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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.