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Finding the Fourth Proportional to 173,172.64, 259,773.80 and 60,843.18

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Solution

The fourth proportional to 173,172.64, 259,773.80 and 60,843.18 is: 91,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,172.64 : 259,773.80 = 60,843.18 : x
  2. Step 2: Convert to fraction form
    173,172.64/259,773.80 = 60,843.18/x
  3. Step 3: Cross multiply
    173,172.64x = 259,773.80 × 60,843.18
  4. Step 4: Simplify right side
    173,172.64x = 15,805,464,072.68
  5. Step 5: Solve for x
    x = 15,805,464,072.68/173,172.64
  6. Step 6: Final answer
    x = 91,269.98

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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.