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Finding the Fourth Proportional to 222,642.36, 333,978.93 and 89,522.64

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Solution

The fourth proportional to 222,642.36, 333,978.93 and 89,522.64 is: 134,290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,642.36 : 333,978.93 = 89,522.64 : x
  2. Step 2: Convert to fraction form
    222,642.36/333,978.93 = 89,522.64/x
  3. Step 3: Cross multiply
    222,642.36x = 333,978.93 × 89,522.64
  4. Step 4: Simplify right side
    222,642.36x = 29,898,675,517.98
  5. Step 5: Solve for x
    x = 29,898,675,517.98/222,642.36
  6. Step 6: Final answer
    x = 134,290.15

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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.