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Finding the Fourth Proportional to 222,299.66, 306,773.54 and 121,697.66

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Solution

The fourth proportional to 222,299.66, 306,773.54 and 121,697.66 is: 167,942.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,299.66 : 306,773.54 = 121,697.66 : x
  2. Step 2: Convert to fraction form
    222,299.66/306,773.54 = 121,697.66/x
  3. Step 3: Cross multiply
    222,299.66x = 306,773.54 × 121,697.66
  4. Step 4: Simplify right side
    222,299.66x = 37,333,619,825.56
  5. Step 5: Solve for x
    x = 37,333,619,825.56/222,299.66
  6. Step 6: Final answer
    x = 167,942.77

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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.