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Finding the Fourth Proportional to 108,418.38, 149,623.62 and 60,671.30

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Solution

The fourth proportional to 108,418.38, 149,623.62 and 60,671.30 is: 83,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,418.38 : 149,623.62 = 60,671.30 : x
  2. Step 2: Convert to fraction form
    108,418.38/149,623.62 = 60,671.30/x
  3. Step 3: Cross multiply
    108,418.38x = 149,623.62 × 60,671.30
  4. Step 4: Simplify right side
    108,418.38x = 9,077,859,536.11
  5. Step 5: Solve for x
    x = 9,077,859,536.11/108,418.38
  6. Step 6: Final answer
    x = 83,729.89

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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.