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Finding the Fourth Proportional to 172,419.01, 258,635.80 and 60,110.48

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Solution

The fourth proportional to 172,419.01, 258,635.80 and 60,110.48 is: 90,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,419.01 : 258,635.80 = 60,110.48 : x
  2. Step 2: Convert to fraction form
    172,419.01/258,635.80 = 60,110.48/x
  3. Step 3: Cross multiply
    172,419.01x = 258,635.80 × 60,110.48
  4. Step 4: Simplify right side
    172,419.01x = 15,546,722,083.18
  5. Step 5: Solve for x
    x = 15,546,722,083.18/172,419.01
  6. Step 6: Final answer
    x = 90,168.26

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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.