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Finding the Fourth Proportional to 108,962.22, 150,410.31 and 68,668.11

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Solution

The fourth proportional to 108,962.22, 150,410.31 and 68,668.11 is: 94,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,962.22 : 150,410.31 = 68,668.11 : x
  2. Step 2: Convert to fraction form
    108,962.22/150,410.31 = 68,668.11/x
  3. Step 3: Cross multiply
    108,962.22x = 150,410.31 × 68,668.11
  4. Step 4: Simplify right side
    108,962.22x = 10,328,391,712.21
  5. Step 5: Solve for x
    x = 10,328,391,712.21/108,962.22
  6. Step 6: Final answer
    x = 94,788.74

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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.