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Finding the Fourth Proportional to 171,977.47, 257,871.48 and 92,109.04

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Solution

The fourth proportional to 171,977.47, 257,871.48 and 92,109.04 is: 138,112.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,977.47 : 257,871.48 = 92,109.04 : x
  2. Step 2: Convert to fraction form
    171,977.47/257,871.48 = 92,109.04/x
  3. Step 3: Cross multiply
    171,977.47x = 257,871.48 × 92,109.04
  4. Step 4: Simplify right side
    171,977.47x = 23,752,294,466.18
  5. Step 5: Solve for x
    x = 23,752,294,466.18/171,977.47
  6. Step 6: Final answer
    x = 138,112.83

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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.