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Finding the Fourth Proportional to 383,696.64, 575,446.79 and 113,761.66

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Solution

The fourth proportional to 383,696.64, 575,446.79 and 113,761.66 is: 170,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,696.64 : 575,446.79 = 113,761.66 : x
  2. Step 2: Convert to fraction form
    383,696.64/575,446.79 = 113,761.66/x
  3. Step 3: Cross multiply
    383,696.64x = 575,446.79 × 113,761.66
  4. Step 4: Simplify right side
    383,696.64x = 65,463,780,064.65
  5. Step 5: Solve for x
    x = 65,463,780,064.65/383,696.64
  6. Step 6: Final answer
    x = 170,613.38

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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.