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Finding the Fourth Proportional to 107,754.79, 148,690.97 and 60,012.58

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Solution

The fourth proportional to 107,754.79, 148,690.97 and 60,012.58 is: 82,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,754.79 : 148,690.97 = 60,012.58 : x
  2. Step 2: Convert to fraction form
    107,754.79/148,690.97 = 60,012.58/x
  3. Step 3: Cross multiply
    107,754.79x = 148,690.97 × 60,012.58
  4. Step 4: Simplify right side
    107,754.79x = 8,923,328,395.67
  5. Step 5: Solve for x
    x = 8,923,328,395.67/107,754.79
  6. Step 6: Final answer
    x = 82,811.43

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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.