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Finding the Fourth Proportional to 116,932.54, 161,420.88 and 68,527.78

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Solution

The fourth proportional to 116,932.54, 161,420.88 and 68,527.78 is: 94,599.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,932.54 : 161,420.88 = 68,527.78 : x
  2. Step 2: Convert to fraction form
    116,932.54/161,420.88 = 68,527.78/x
  3. Step 3: Cross multiply
    116,932.54x = 161,420.88 × 68,527.78
  4. Step 4: Simplify right side
    116,932.54x = 11,061,814,552.05
  5. Step 5: Solve for x
    x = 11,061,814,552.05/116,932.54
  6. Step 6: Final answer
    x = 94,599.97

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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.