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Finding the Fourth Proportional to 222,039.32, 306,406.68 and 126,576.77

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Solution

The fourth proportional to 222,039.32, 306,406.68 and 126,576.77 is: 174,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,039.32 : 306,406.68 = 126,576.77 : x
  2. Step 2: Convert to fraction form
    222,039.32/306,406.68 = 126,576.77/x
  3. Step 3: Cross multiply
    222,039.32x = 306,406.68 × 126,576.77
  4. Step 4: Simplify right side
    222,039.32x = 38,783,967,860.82
  5. Step 5: Solve for x
    x = 38,783,967,860.82/222,039.32
  6. Step 6: Final answer
    x = 174,671.62

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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.