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Finding the Fourth Proportional to 108,234.80, 149,267.31 and 67,952.32

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Solution

The fourth proportional to 108,234.80, 149,267.31 and 67,952.32 is: 93,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,234.80 : 149,267.31 = 67,952.32 : x
  2. Step 2: Convert to fraction form
    108,234.80/149,267.31 = 67,952.32/x
  3. Step 3: Cross multiply
    108,234.80x = 149,267.31 × 67,952.32
  4. Step 4: Simplify right side
    108,234.80x = 10,143,059,386.67
  5. Step 5: Solve for x
    x = 10,143,059,386.67/108,234.80
  6. Step 6: Final answer
    x = 93,713.48

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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.