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Finding the Fourth Proportional to 84,859.60, 117,093.23 and 49,042.69

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Solution

The fourth proportional to 84,859.60, 117,093.23 and 49,042.69 is: 67,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,859.60 : 117,093.23 = 49,042.69 : x
  2. Step 2: Convert to fraction form
    84,859.60/117,093.23 = 49,042.69/x
  3. Step 3: Cross multiply
    84,859.60x = 117,093.23 × 49,042.69
  4. Step 4: Simplify right side
    84,859.60x = 5,742,566,979.99
  5. Step 5: Solve for x
    x = 5,742,566,979.99/84,859.60
  6. Step 6: Final answer
    x = 67,671.39

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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.