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Finding the Fourth Proportional to 84,891.66, 117,164.93 and 49,103.43

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Solution

The fourth proportional to 84,891.66, 117,164.93 and 49,103.43 is: 67,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,891.66 : 117,164.93 = 49,103.43 : x
  2. Step 2: Convert to fraction form
    84,891.66/117,164.93 = 49,103.43/x
  3. Step 3: Cross multiply
    84,891.66x = 117,164.93 × 49,103.43
  4. Step 4: Simplify right side
    84,891.66x = 5,753,199,693.19
  5. Step 5: Solve for x
    x = 5,753,199,693.19/84,891.66
  6. Step 6: Final answer
    x = 67,771.08

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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.