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Finding the Fourth Proportional to 105,989.79, 146,274.06 and 60,682.03

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Solution

The fourth proportional to 105,989.79, 146,274.06 and 60,682.03 is: 83,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,989.79 : 146,274.06 = 60,682.03 : x
  2. Step 2: Convert to fraction form
    105,989.79/146,274.06 = 60,682.03/x
  3. Step 3: Cross multiply
    105,989.79x = 146,274.06 × 60,682.03
  4. Step 4: Simplify right side
    105,989.79x = 8,876,206,897.14
  5. Step 5: Solve for x
    x = 8,876,206,897.14/105,989.79
  6. Step 6: Final answer
    x = 83,745.87

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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.