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Finding the Fourth Proportional to 226,719.61, 340,123.16 and 126,992.41

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Solution

The fourth proportional to 226,719.61, 340,123.16 and 126,992.41 is: 190,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,719.61 : 340,123.16 = 126,992.41 : x
  2. Step 2: Convert to fraction form
    226,719.61/340,123.16 = 126,992.41/x
  3. Step 3: Cross multiply
    226,719.61x = 340,123.16 × 126,992.41
  4. Step 4: Simplify right side
    226,719.61x = 43,193,059,785.22
  5. Step 5: Solve for x
    x = 43,193,059,785.22/226,719.61
  6. Step 6: Final answer
    x = 190,513.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.