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Finding the Fourth Proportional to 339,503.60, 468,514.08 and 186,517.28

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Solution

The fourth proportional to 339,503.60, 468,514.08 and 186,517.28 is: 257,393.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,503.60 : 468,514.08 = 186,517.28 : x
  2. Step 2: Convert to fraction form
    339,503.60/468,514.08 = 186,517.28/x
  3. Step 3: Cross multiply
    339,503.60x = 468,514.08 × 186,517.28
  4. Step 4: Simplify right side
    339,503.60x = 87,385,971,843.30
  5. Step 5: Solve for x
    x = 87,385,971,843.30/339,503.60
  6. Step 6: Final answer
    x = 257,393.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.