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Finding the Fourth Proportional to 169,137.52, 253,652.56 and 55,259.38

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Solution

The fourth proportional to 169,137.52, 253,652.56 and 55,259.38 is: 82,871.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,137.52 : 253,652.56 = 55,259.38 : x
  2. Step 2: Convert to fraction form
    169,137.52/253,652.56 = 55,259.38/x
  3. Step 3: Cross multiply
    169,137.52x = 253,652.56 × 55,259.38
  4. Step 4: Simplify right side
    169,137.52x = 14,016,683,201.01
  5. Step 5: Solve for x
    x = 14,016,683,201.01/169,137.52
  6. Step 6: Final answer
    x = 82,871.52

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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.