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Finding the Fourth Proportional to 222,603.12, 333,943.56 and 97,940.88

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Solution

The fourth proportional to 222,603.12, 333,943.56 and 97,940.88 is: 146,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,603.12 : 333,943.56 = 97,940.88 : x
  2. Step 2: Convert to fraction form
    222,603.12/333,943.56 = 97,940.88/x
  3. Step 3: Cross multiply
    222,603.12x = 333,943.56 × 97,940.88
  4. Step 4: Simplify right side
    222,603.12x = 32,706,723,977.31
  5. Step 5: Solve for x
    x = 32,706,723,977.31/222,603.12
  6. Step 6: Final answer
    x = 146,928.42

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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.