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Finding the Fourth Proportional to 271,053.30, 406,549.18 and 71,389.31

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Solution

The fourth proportional to 271,053.30, 406,549.18 and 71,389.31 is: 107,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,053.30 : 406,549.18 = 71,389.31 : x
  2. Step 2: Convert to fraction form
    271,053.30/406,549.18 = 71,389.31/x
  3. Step 3: Cross multiply
    271,053.30x = 406,549.18 × 71,389.31
  4. Step 4: Simplify right side
    271,053.30x = 29,023,264,841.96
  5. Step 5: Solve for x
    x = 29,023,264,841.96/271,053.30
  6. Step 6: Final answer
    x = 107,075.86

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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.