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Finding the Fourth Proportional to 222,636.52, 333,989.34 and 74,881

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Solution

The fourth proportional to 222,636.52, 333,989.34 and 74,881 is: 112,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,636.52 : 333,989.34 = 74,881 : x
  2. Step 2: Convert to fraction form
    222,636.52/333,989.34 = 74,881/x
  3. Step 3: Cross multiply
    222,636.52x = 333,989.34 × 74,881
  4. Step 4: Simplify right side
    222,636.52x = 25,009,455,768.54
  5. Step 5: Solve for x
    x = 25,009,455,768.54/222,636.52
  6. Step 6: Final answer
    x = 112,333.12

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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.