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Finding the Fourth Proportional to 222,316.88, 306,768.44 and 126,817.88

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Solution

The fourth proportional to 222,316.88, 306,768.44 and 126,817.88 is: 174,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,316.88 : 306,768.44 = 126,817.88 : x
  2. Step 2: Convert to fraction form
    222,316.88/306,768.44 = 126,817.88/x
  3. Step 3: Cross multiply
    222,316.88x = 306,768.44 × 126,817.88
  4. Step 4: Simplify right side
    222,316.88x = 38,903,723,211.71
  5. Step 5: Solve for x
    x = 38,903,723,211.71/222,316.88
  6. Step 6: Final answer
    x = 174,992.21

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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.