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Finding the Fourth Proportional to 116,994.78, 161,452.91 and 63,279.87

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Solution

The fourth proportional to 116,994.78, 161,452.91 and 63,279.87 is: 87,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,994.78 : 161,452.91 = 63,279.87 : x
  2. Step 2: Convert to fraction form
    116,994.78/161,452.91 = 63,279.87/x
  3. Step 3: Cross multiply
    116,994.78x = 161,452.91 × 63,279.87
  4. Step 4: Simplify right side
    116,994.78x = 10,216,718,708.67
  5. Step 5: Solve for x
    x = 10,216,718,708.67/116,994.78
  6. Step 6: Final answer
    x = 87,326.28

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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.