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Finding the Fourth Proportional to 108,615.97, 162,924.06 and 45,401.47

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Solution

The fourth proportional to 108,615.97, 162,924.06 and 45,401.47 is: 68,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,615.97 : 162,924.06 = 45,401.47 : x
  2. Step 2: Convert to fraction form
    108,615.97/162,924.06 = 45,401.47/x
  3. Step 3: Cross multiply
    108,615.97x = 162,924.06 × 45,401.47
  4. Step 4: Simplify right side
    108,615.97x = 7,396,991,822.37
  5. Step 5: Solve for x
    x = 7,396,991,822.37/108,615.97
  6. Step 6: Final answer
    x = 68,102.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.