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Finding the Fourth Proportional to 98,290.87, 147,249.29 and 50,834.86

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Solution

The fourth proportional to 98,290.87, 147,249.29 and 50,834.86 is: 76,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,290.87 : 147,249.29 = 50,834.86 : x
  2. Step 2: Convert to fraction form
    98,290.87/147,249.29 = 50,834.86/x
  3. Step 3: Cross multiply
    98,290.87x = 147,249.29 × 50,834.86
  4. Step 4: Simplify right side
    98,290.87x = 7,485,396,801.21
  5. Step 5: Solve for x
    x = 7,485,396,801.21/98,290.87
  6. Step 6: Final answer
    x = 76,155.57

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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.