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Finding the Fourth Proportional to 94,078.51, 129,821.56 and 53,793.97

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Solution

The fourth proportional to 94,078.51, 129,821.56 and 53,793.97 is: 74,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,078.51 : 129,821.56 = 53,793.97 : x
  2. Step 2: Convert to fraction form
    94,078.51/129,821.56 = 53,793.97/x
  3. Step 3: Cross multiply
    94,078.51x = 129,821.56 × 53,793.97
  4. Step 4: Simplify right side
    94,078.51x = 6,983,617,103.99
  5. Step 5: Solve for x
    x = 6,983,617,103.99/94,078.51
  6. Step 6: Final answer
    x = 74,231.80

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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.