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Finding the Fourth Proportional to 111,896.91, 154,412.91 and 60,909.71

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Solution

The fourth proportional to 111,896.91, 154,412.91 and 60,909.71 is: 84,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,896.91 : 154,412.91 = 60,909.71 : x
  2. Step 2: Convert to fraction form
    111,896.91/154,412.91 = 60,909.71/x
  3. Step 3: Cross multiply
    111,896.91x = 154,412.91 × 60,909.71
  4. Step 4: Simplify right side
    111,896.91x = 9,405,244,796.29
  5. Step 5: Solve for x
    x = 9,405,244,796.29/111,896.91
  6. Step 6: Final answer
    x = 84,052.77

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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.