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Finding the Fourth Proportional to 226,465.78, 312,516.33 and 124,491.44

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Solution

The fourth proportional to 226,465.78, 312,516.33 and 124,491.44 is: 171,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,465.78 : 312,516.33 = 124,491.44 : x
  2. Step 2: Convert to fraction form
    226,465.78/312,516.33 = 124,491.44/x
  3. Step 3: Cross multiply
    226,465.78x = 312,516.33 × 124,491.44
  4. Step 4: Simplify right side
    226,465.78x = 38,905,607,945.22
  5. Step 5: Solve for x
    x = 38,905,607,945.22/226,465.78
  6. Step 6: Final answer
    x = 171,794.64

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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.