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Finding the Fourth Proportional to 383,694.14, 575,585.67 and 127,549.64

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Solution

The fourth proportional to 383,694.14, 575,585.67 and 127,549.64 is: 191,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,694.14 : 575,585.67 = 127,549.64 : x
  2. Step 2: Convert to fraction form
    383,694.14/575,585.67 = 127,549.64/x
  3. Step 3: Cross multiply
    383,694.14x = 575,585.67 × 127,549.64
  4. Step 4: Simplify right side
    383,694.14x = 73,415,744,997.66
  5. Step 5: Solve for x
    x = 73,415,744,997.66/383,694.14
  6. Step 6: Final answer
    x = 191,339.24

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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.