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Finding the Fourth Proportional to 124,201.82, 171,399.22 and 67,613.06

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Solution

The fourth proportional to 124,201.82, 171,399.22 and 67,613.06 is: 93,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,201.82 : 171,399.22 = 67,613.06 : x
  2. Step 2: Convert to fraction form
    124,201.82/171,399.22 = 67,613.06/x
  3. Step 3: Cross multiply
    124,201.82x = 171,399.22 × 67,613.06
  4. Step 4: Simplify right side
    124,201.82x = 11,588,824,719.78
  5. Step 5: Solve for x
    x = 11,588,824,719.78/124,201.82
  6. Step 6: Final answer
    x = 93,306.40

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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.