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Finding the Fourth Proportional to 111,215.72, 166,822.28 and 44,654.68

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Solution

The fourth proportional to 111,215.72, 166,822.28 and 44,654.68 is: 66,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,215.72 : 166,822.28 = 44,654.68 : x
  2. Step 2: Convert to fraction form
    111,215.72/166,822.28 = 44,654.68/x
  3. Step 3: Cross multiply
    111,215.72x = 166,822.28 × 44,654.68
  4. Step 4: Simplify right side
    111,215.72x = 7,449,395,682.98
  5. Step 5: Solve for x
    x = 7,449,395,682.98/111,215.72
  6. Step 6: Final answer
    x = 66,981.50

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1.5x scale

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.