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Finding the Fourth Proportional to 222,264.72, 306,734.04 and 121,662.72

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Solution

The fourth proportional to 222,264.72, 306,734.04 and 121,662.72 is: 167,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,264.72 : 306,734.04 = 121,662.72 : x
  2. Step 2: Convert to fraction form
    222,264.72/306,734.04 = 121,662.72/x
  3. Step 3: Cross multiply
    222,264.72x = 306,734.04 × 121,662.72
  4. Step 4: Simplify right side
    222,264.72x = 37,318,097,622.99
  5. Step 5: Solve for x
    x = 37,318,097,622.99/222,264.72
  6. Step 6: Final answer
    x = 167,899.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.