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Finding the Fourth Proportional to 173,122.60, 259,781.10 and 73,265.80

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Solution

The fourth proportional to 173,122.60, 259,781.10 and 73,265.80 is: 109,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,122.60 : 259,781.10 = 73,265.80 : x
  2. Step 2: Convert to fraction form
    173,122.60/259,781.10 = 73,265.80/x
  3. Step 3: Cross multiply
    173,122.60x = 259,781.10 × 73,265.80
  4. Step 4: Simplify right side
    173,122.60x = 19,033,070,116.38
  5. Step 5: Solve for x
    x = 19,033,070,116.38/173,122.60
  6. Step 6: Final answer
    x = 109,939.84

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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.