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Finding the Fourth Proportional to 98,669.87, 148,029.11 and 28,556.27

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Solution

The fourth proportional to 98,669.87, 148,029.11 and 28,556.27 is: 42,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,669.87 : 148,029.11 = 28,556.27 : x
  2. Step 2: Convert to fraction form
    98,669.87/148,029.11 = 28,556.27/x
  3. Step 3: Cross multiply
    98,669.87x = 148,029.11 × 28,556.27
  4. Step 4: Simplify right side
    98,669.87x = 4,227,158,350.09
  5. Step 5: Solve for x
    x = 4,227,158,350.09/98,669.87
  6. Step 6: Final answer
    x = 42,841.43

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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.