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Finding the Fourth Proportional to 222,640.62, 333,964.62 and 64,877.76

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Solution

The fourth proportional to 222,640.62, 333,964.62 and 64,877.76 is: 97,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,640.62 : 333,964.62 = 64,877.76 : x
  2. Step 2: Convert to fraction form
    222,640.62/333,964.62 = 64,877.76/x
  3. Step 3: Cross multiply
    222,640.62x = 333,964.62 × 64,877.76
  4. Step 4: Simplify right side
    222,640.62x = 21,666,876,464.85
  5. Step 5: Solve for x
    x = 21,666,876,464.85/222,640.62
  6. Step 6: Final answer
    x = 97,317.72

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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.