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Finding the Fourth Proportional to 68,312.27, 101,789.31 and 60,859.46

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Solution

The fourth proportional to 68,312.27, 101,789.31 and 60,859.46 is: 90,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,312.27 : 101,789.31 = 60,859.46 : x
  2. Step 2: Convert to fraction form
    68,312.27/101,789.31 = 60,859.46/x
  3. Step 3: Cross multiply
    68,312.27x = 101,789.31 × 60,859.46
  4. Step 4: Simplify right side
    68,312.27x = 6,194,842,923.07
  5. Step 5: Solve for x
    x = 6,194,842,923.07/68,312.27
  6. Step 6: Final answer
    x = 90,684.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.