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Finding the Fourth Proportional to 271,862.80, 406,987.80 and 202,051.60

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Solution

The fourth proportional to 271,862.80, 406,987.80 and 202,051.60 is: 302,478.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,862.80 : 406,987.80 = 202,051.60 : x
  2. Step 2: Convert to fraction form
    271,862.80/406,987.80 = 202,051.60/x
  3. Step 3: Cross multiply
    271,862.80x = 406,987.80 × 202,051.60
  4. Step 4: Simplify right side
    271,862.80x = 82,232,536,170.48
  5. Step 5: Solve for x
    x = 82,232,536,170.48/271,862.80
  6. Step 6: Final answer
    x = 302,478.07

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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.