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Finding the Fourth Proportional to 222,081.44, 306,480.32 and 126,572.72

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Solution

The fourth proportional to 222,081.44, 306,480.32 and 126,572.72 is: 174,674.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,081.44 : 306,480.32 = 126,572.72 : x
  2. Step 2: Convert to fraction form
    222,081.44/306,480.32 = 126,572.72/x
  3. Step 3: Cross multiply
    222,081.44x = 306,480.32 × 126,572.72
  4. Step 4: Simplify right side
    222,081.44x = 38,792,047,728.87
  5. Step 5: Solve for x
    x = 38,792,047,728.87/222,081.44
  6. Step 6: Final answer
    x = 174,674.87

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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.