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Finding the Fourth Proportional to 222,504.16, 306,980.20 and 125,693.87

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Solution

The fourth proportional to 222,504.16, 306,980.20 and 125,693.87 is: 173,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,504.16 : 306,980.20 = 125,693.87 : x
  2. Step 2: Convert to fraction form
    222,504.16/306,980.20 = 125,693.87/x
  3. Step 3: Cross multiply
    222,504.16x = 306,980.20 × 125,693.87
  4. Step 4: Simplify right side
    222,504.16x = 38,585,527,502.24
  5. Step 5: Solve for x
    x = 38,585,527,502.24/222,504.16
  6. Step 6: Final answer
    x = 173,414.86

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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.