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Finding the Fourth Proportional to 108,353.22, 149,540.08 and 63,033.12

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Solution

The fourth proportional to 108,353.22, 149,540.08 and 63,033.12 is: 86,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,353.22 : 149,540.08 = 63,033.12 : x
  2. Step 2: Convert to fraction form
    108,353.22/149,540.08 = 63,033.12/x
  3. Step 3: Cross multiply
    108,353.22x = 149,540.08 × 63,033.12
  4. Step 4: Simplify right side
    108,353.22x = 9,425,976,823.38
  5. Step 5: Solve for x
    x = 9,425,976,823.38/108,353.22
  6. Step 6: Final answer
    x = 86,993.05

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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.