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Finding the Fourth Proportional to 222,299.76, 306,773.68 and 121,697.76

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Solution

The fourth proportional to 222,299.76, 306,773.68 and 121,697.76 is: 167,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,299.76 : 306,773.68 = 121,697.76 : x
  2. Step 2: Convert to fraction form
    222,299.76/306,773.68 = 121,697.76/x
  3. Step 3: Cross multiply
    222,299.76x = 306,773.68 × 121,697.76
  4. Step 4: Simplify right side
    222,299.76x = 37,333,669,682.96
  5. Step 5: Solve for x
    x = 37,333,669,682.96/222,299.76
  6. Step 6: Final answer
    x = 167,942.91

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1.5x scale

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.