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Finding the Fourth Proportional to 271,063.90, 406,615.84 and 71,382.92

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Solution

The fourth proportional to 271,063.90, 406,615.84 and 71,382.92 is: 107,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,063.90 : 406,615.84 = 71,382.92 : x
  2. Step 2: Convert to fraction form
    271,063.90/406,615.84 = 71,382.92/x
  3. Step 3: Cross multiply
    271,063.90x = 406,615.84 × 71,382.92
  4. Step 4: Simplify right side
    271,063.90x = 29,025,425,977.45
  5. Step 5: Solve for x
    x = 29,025,425,977.45/271,063.90
  6. Step 6: Final answer
    x = 107,079.64

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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.