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Finding the Fourth Proportional to 117,640.59, 162,339.68 and 63,924.48

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Solution

The fourth proportional to 117,640.59, 162,339.68 and 63,924.48 is: 88,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,640.59 : 162,339.68 = 63,924.48 : x
  2. Step 2: Convert to fraction form
    117,640.59/162,339.68 = 63,924.48/x
  3. Step 3: Cross multiply
    117,640.59x = 162,339.68 × 63,924.48
  4. Step 4: Simplify right side
    117,640.59x = 10,377,479,307.74
  5. Step 5: Solve for x
    x = 10,377,479,307.74/117,640.59
  6. Step 6: Final answer
    x = 88,213.42

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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.