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Finding the Fourth Proportional to 173,138.62, 259,722.74 and 60,809.06

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Solution

The fourth proportional to 173,138.62, 259,722.74 and 60,809.06 is: 91,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,138.62 : 259,722.74 = 60,809.06 : x
  2. Step 2: Convert to fraction form
    173,138.62/259,722.74 = 60,809.06/x
  3. Step 3: Cross multiply
    173,138.62x = 259,722.74 × 60,809.06
  4. Step 4: Simplify right side
    173,138.62x = 15,793,495,680.02
  5. Step 5: Solve for x
    x = 15,793,495,680.02/173,138.62
  6. Step 6: Final answer
    x = 91,218.79

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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.