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Finding the Fourth Proportional to 117,044.87, 161,520.75 and 63,328.70

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Solution

The fourth proportional to 117,044.87, 161,520.75 and 63,328.70 is: 87,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,044.87 : 161,520.75 = 63,328.70 : x
  2. Step 2: Convert to fraction form
    117,044.87/161,520.75 = 63,328.70/x
  3. Step 3: Cross multiply
    117,044.87x = 161,520.75 × 63,328.70
  4. Step 4: Simplify right side
    117,044.87x = 10,228,899,524.33
  5. Step 5: Solve for x
    x = 10,228,899,524.33/117,044.87
  6. Step 6: Final answer
    x = 87,392.98

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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.