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Finding the Fourth Proportional to 108,172, 162,265.36 and 33,287.52

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Solution

The fourth proportional to 108,172, 162,265.36 and 33,287.52 is: 49,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,172 : 162,265.36 = 33,287.52 : x
  2. Step 2: Convert to fraction form
    108,172/162,265.36 = 33,287.52/x
  3. Step 3: Cross multiply
    108,172x = 162,265.36 × 33,287.52
  4. Step 4: Simplify right side
    108,172x = 5,401,411,416.31
  5. Step 5: Solve for x
    x = 5,401,411,416.31/108,172
  6. Step 6: Final answer
    x = 49,933.54

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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.