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Finding the Fourth Proportional to 84,959.66, 117,231.47 and 48,655.46

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Solution

The fourth proportional to 84,959.66, 117,231.47 and 48,655.46 is: 67,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,959.66 : 117,231.47 = 48,655.46 : x
  2. Step 2: Convert to fraction form
    84,959.66/117,231.47 = 48,655.46/x
  3. Step 3: Cross multiply
    84,959.66x = 117,231.47 × 48,655.46
  4. Step 4: Simplify right side
    84,959.66x = 5,703,951,099.33
  5. Step 5: Solve for x
    x = 5,703,951,099.33/84,959.66
  6. Step 6: Final answer
    x = 67,137.17

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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.