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Finding the Fourth Proportional to 111,773.22, 154,248.08 and 60,786.43

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Solution

The fourth proportional to 111,773.22, 154,248.08 and 60,786.43 is: 83,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,773.22 : 154,248.08 = 60,786.43 : x
  2. Step 2: Convert to fraction form
    111,773.22/154,248.08 = 60,786.43/x
  3. Step 3: Cross multiply
    111,773.22x = 154,248.08 × 60,786.43
  4. Step 4: Simplify right side
    111,773.22x = 9,376,189,813.62
  5. Step 5: Solve for x
    x = 9,376,189,813.62/111,773.22
  6. Step 6: Final answer
    x = 83,885.83

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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.