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Finding the Fourth Proportional to 99,908.76, 149,859.68 and 25,029.54

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Solution

The fourth proportional to 99,908.76, 149,859.68 and 25,029.54 is: 37,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.76 : 149,859.68 = 25,029.54 : x
  2. Step 2: Convert to fraction form
    99,908.76/149,859.68 = 25,029.54/x
  3. Step 3: Cross multiply
    99,908.76x = 149,859.68 × 25,029.54
  4. Step 4: Simplify right side
    99,908.76x = 3,750,918,854.95
  5. Step 5: Solve for x
    x = 3,750,918,854.95/99,908.76
  6. Step 6: Final answer
    x = 37,543.44

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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.