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Finding the Fourth Proportional to 173,181.16, 259,771.74 and 79,765.48

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Solution

The fourth proportional to 173,181.16, 259,771.74 and 79,765.48 is: 119,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,181.16 : 259,771.74 = 79,765.48 : x
  2. Step 2: Convert to fraction form
    173,181.16/259,771.74 = 79,765.48/x
  3. Step 3: Cross multiply
    173,181.16x = 259,771.74 × 79,765.48
  4. Step 4: Simplify right side
    173,181.16x = 20,720,817,531.54
  5. Step 5: Solve for x
    x = 20,720,817,531.54/173,181.16
  6. Step 6: Final answer
    x = 119,648.22

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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.