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Finding the Fourth Proportional to 222,641.52, 333,996.84 and 74,886

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Solution

The fourth proportional to 222,641.52, 333,996.84 and 74,886 is: 112,340.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,641.52 : 333,996.84 = 74,886 : x
  2. Step 2: Convert to fraction form
    222,641.52/333,996.84 = 74,886/x
  3. Step 3: Cross multiply
    222,641.52x = 333,996.84 × 74,886
  4. Step 4: Simplify right side
    222,641.52x = 25,011,687,360.24
  5. Step 5: Solve for x
    x = 25,011,687,360.24/222,641.52
  6. Step 6: Final answer
    x = 112,340.62

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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.