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Finding the Fourth Proportional to 117,227.78, 175,841.09 and 42,347.87

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Solution

The fourth proportional to 117,227.78, 175,841.09 and 42,347.87 is: 63,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,227.78 : 175,841.09 = 42,347.87 : x
  2. Step 2: Convert to fraction form
    117,227.78/175,841.09 = 42,347.87/x
  3. Step 3: Cross multiply
    117,227.78x = 175,841.09 × 42,347.87
  4. Step 4: Simplify right side
    117,227.78x = 7,446,495,408.24
  5. Step 5: Solve for x
    x = 7,446,495,408.24/117,227.78
  6. Step 6: Final answer
    x = 63,521.59

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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.