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Finding the Fourth Proportional to 277,241.46, 415,877.30 and 87,687.66

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Solution

The fourth proportional to 277,241.46, 415,877.30 and 87,687.66 is: 131,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,241.46 : 415,877.30 = 87,687.66 : x
  2. Step 2: Convert to fraction form
    277,241.46/415,877.30 = 87,687.66/x
  3. Step 3: Cross multiply
    277,241.46x = 415,877.30 × 87,687.66
  4. Step 4: Simplify right side
    277,241.46x = 36,467,307,284.12
  5. Step 5: Solve for x
    x = 36,467,307,284.12/277,241.46
  6. Step 6: Final answer
    x = 131,536.27

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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.