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Finding the Fourth Proportional to 222,420.30, 333,648.66 and 64,648.59

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Solution

The fourth proportional to 222,420.30, 333,648.66 and 64,648.59 is: 96,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,420.30 : 333,648.66 = 64,648.59 : x
  2. Step 2: Convert to fraction form
    222,420.30/333,648.66 = 64,648.59/x
  3. Step 3: Cross multiply
    222,420.30x = 333,648.66 × 64,648.59
  4. Step 4: Simplify right side
    222,420.30x = 21,569,915,424.39
  5. Step 5: Solve for x
    x = 21,569,915,424.39/222,420.30
  6. Step 6: Final answer
    x = 96,978.18

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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.