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Finding the Fourth Proportional to 172,748.60, 259,198.14 and 60,509.48

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Solution

The fourth proportional to 172,748.60, 259,198.14 and 60,509.48 is: 90,790.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,748.60 : 259,198.14 = 60,509.48 : x
  2. Step 2: Convert to fraction form
    172,748.60/259,198.14 = 60,509.48/x
  3. Step 3: Cross multiply
    172,748.60x = 259,198.14 × 60,509.48
  4. Step 4: Simplify right side
    172,748.60x = 15,683,944,668.37
  5. Step 5: Solve for x
    x = 15,683,944,668.37/172,748.60
  6. Step 6: Final answer
    x = 90,790.57

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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.