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Finding the Fourth Proportional to 222,521.57, 333,814.16 and 68,660.58

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Solution

The fourth proportional to 222,521.57, 333,814.16 and 68,660.58 is: 103,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,521.57 : 333,814.16 = 68,660.58 : x
  2. Step 2: Convert to fraction form
    222,521.57/333,814.16 = 68,660.58/x
  3. Step 3: Cross multiply
    222,521.57x = 333,814.16 × 68,660.58
  4. Step 4: Simplify right side
    222,521.57x = 22,919,873,837.81
  5. Step 5: Solve for x
    x = 22,919,873,837.81/222,521.57
  6. Step 6: Final answer
    x = 103,000.68

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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.