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Finding the Fourth Proportional to 98,504.86, 147,751.21 and 39,297.91

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Solution

The fourth proportional to 98,504.86, 147,751.21 and 39,297.91 is: 58,944.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,504.86 : 147,751.21 = 39,297.91 : x
  2. Step 2: Convert to fraction form
    98,504.86/147,751.21 = 39,297.91/x
  3. Step 3: Cross multiply
    98,504.86x = 147,751.21 × 39,297.91
  4. Step 4: Simplify right side
    98,504.86x = 5,806,313,752.97
  5. Step 5: Solve for x
    x = 5,806,313,752.97/98,504.86
  6. Step 6: Final answer
    x = 58,944.44

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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.