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Finding the Fourth Proportional to 383,991.32, 575,965.43 and 117,751.11

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Solution

The fourth proportional to 383,991.32, 575,965.43 and 117,751.11 is: 176,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,991.32 : 575,965.43 = 117,751.11 : x
  2. Step 2: Convert to fraction form
    383,991.32/575,965.43 = 117,751.11/x
  3. Step 3: Cross multiply
    383,991.32x = 575,965.43 × 117,751.11
  4. Step 4: Simplify right side
    383,991.32x = 67,820,568,704.13
  5. Step 5: Solve for x
    x = 67,820,568,704.13/383,991.32
  6. Step 6: Final answer
    x = 176,620.06

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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.