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Finding the Fourth Proportional to 222,711.26, 333,996.55 and 72,917.11

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Solution

The fourth proportional to 222,711.26, 333,996.55 and 72,917.11 is: 109,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,711.26 : 333,996.55 = 72,917.11 : x
  2. Step 2: Convert to fraction form
    222,711.26/333,996.55 = 72,917.11/x
  3. Step 3: Cross multiply
    222,711.26x = 333,996.55 × 72,917.11
  4. Step 4: Simplify right side
    222,711.26x = 24,354,063,411.17
  5. Step 5: Solve for x
    x = 24,354,063,411.17/222,711.26
  6. Step 6: Final answer
    x = 109,352.64

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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.