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Finding the Fourth Proportional to 222,372.87, 333,637.61 and 147,789.15

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Solution

The fourth proportional to 222,372.87, 333,637.61 and 147,789.15 is: 221,735.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,372.87 : 333,637.61 = 147,789.15 : x
  2. Step 2: Convert to fraction form
    222,372.87/333,637.61 = 147,789.15/x
  3. Step 3: Cross multiply
    222,372.87x = 333,637.61 × 147,789.15
  4. Step 4: Simplify right side
    222,372.87x = 49,308,018,050.99
  5. Step 5: Solve for x
    x = 49,308,018,050.99/222,372.87
  6. Step 6: Final answer
    x = 221,735.76

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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.