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Finding the Fourth Proportional to 117,341, 161,930.42 and 63,625.94

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Solution

The fourth proportional to 117,341, 161,930.42 and 63,625.94 is: 87,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,341 : 161,930.42 = 63,625.94 : x
  2. Step 2: Convert to fraction form
    117,341/161,930.42 = 63,625.94/x
  3. Step 3: Cross multiply
    117,341x = 161,930.42 × 63,625.94
  4. Step 4: Simplify right side
    117,341x = 10,302,975,187.09
  5. Step 5: Solve for x
    x = 10,302,975,187.09/117,341
  6. Step 6: Final answer
    x = 87,803.71

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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.