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Finding the Fourth Proportional to 111,248.58, 166,581.24 and 76,256.58

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Solution

The fourth proportional to 111,248.58, 166,581.24 and 76,256.58 is: 114,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,248.58 : 166,581.24 = 76,256.58 : x
  2. Step 2: Convert to fraction form
    111,248.58/166,581.24 = 76,256.58/x
  3. Step 3: Cross multiply
    111,248.58x = 166,581.24 × 76,256.58
  4. Step 4: Simplify right side
    111,248.58x = 12,702,915,654.56
  5. Step 5: Solve for x
    x = 12,702,915,654.56/111,248.58
  6. Step 6: Final answer
    x = 114,184.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.