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Finding the Fourth Proportional to 86,697.64, 119,183.15 and 74,553.58

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Solution

The fourth proportional to 86,697.64, 119,183.15 and 74,553.58 is: 102,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,697.64 : 119,183.15 = 74,553.58 : x
  2. Step 2: Convert to fraction form
    86,697.64/119,183.15 = 74,553.58/x
  3. Step 3: Cross multiply
    86,697.64x = 119,183.15 × 74,553.58
  4. Step 4: Simplify right side
    86,697.64x = 8,885,530,508.18
  5. Step 5: Solve for x
    x = 8,885,530,508.18/86,697.64
  6. Step 6: Final answer
    x = 102,488.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.