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Finding the Fourth Proportional to 383,907.10, 575,613.90 and 159,422.44

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Solution

The fourth proportional to 383,907.10, 575,613.90 and 159,422.44 is: 239,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,907.10 : 575,613.90 = 159,422.44 : x
  2. Step 2: Convert to fraction form
    383,907.10/575,613.90 = 159,422.44/x
  3. Step 3: Cross multiply
    383,907.10x = 575,613.90 × 159,422.44
  4. Step 4: Simplify right side
    383,907.10x = 91,765,772,435.92
  5. Step 5: Solve for x
    x = 91,765,772,435.92/383,907.10
  6. Step 6: Final answer
    x = 239,031.19

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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.