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Finding the Fourth Proportional to 222,531.30, 333,849.45 and 72,771

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Solution

The fourth proportional to 222,531.30, 333,849.45 and 72,771 is: 109,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,531.30 : 333,849.45 = 72,771 : x
  2. Step 2: Convert to fraction form
    222,531.30/333,849.45 = 72,771/x
  3. Step 3: Cross multiply
    222,531.30x = 333,849.45 × 72,771
  4. Step 4: Simplify right side
    222,531.30x = 24,294,557,962.10
  5. Step 5: Solve for x
    x = 24,294,557,962.10/222,531.30
  6. Step 6: Final answer
    x = 109,173.67

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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.