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Finding the Fourth Proportional to 171,044.36, 236,078.68 and 99,465.67

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Solution

The fourth proportional to 171,044.36, 236,078.68 and 99,465.67 is: 137,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,044.36 : 236,078.68 = 99,465.67 : x
  2. Step 2: Convert to fraction form
    171,044.36/236,078.68 = 99,465.67/x
  3. Step 3: Cross multiply
    171,044.36x = 236,078.68 × 99,465.67
  4. Step 4: Simplify right side
    171,044.36x = 23,481,723,426.55
  5. Step 5: Solve for x
    x = 23,481,723,426.55/171,044.36
  6. Step 6: Final answer
    x = 137,284.41

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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.