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Finding the Fourth Proportional to 173,422.48, 260,168.84 and 98,578.48

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Solution

The fourth proportional to 173,422.48, 260,168.84 and 98,578.48 is: 147,887.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,422.48 : 260,168.84 = 98,578.48 : x
  2. Step 2: Convert to fraction form
    173,422.48/260,168.84 = 98,578.48/x
  3. Step 3: Cross multiply
    173,422.48x = 260,168.84 × 98,578.48
  4. Step 4: Simplify right side
    173,422.48x = 25,647,048,790.56
  5. Step 5: Solve for x
    x = 25,647,048,790.56/173,422.48
  6. Step 6: Final answer
    x = 147,887.68

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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.