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Finding the Fourth Proportional to 73,728.88, 101,683.26 and 62,299.78

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Solution

The fourth proportional to 73,728.88, 101,683.26 and 62,299.78 is: 85,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,728.88 : 101,683.26 = 62,299.78 : x
  2. Step 2: Convert to fraction form
    73,728.88/101,683.26 = 62,299.78/x
  3. Step 3: Cross multiply
    73,728.88x = 101,683.26 × 62,299.78
  4. Step 4: Simplify right side
    73,728.88x = 6,334,844,727.68
  5. Step 5: Solve for x
    x = 6,334,844,727.68/73,728.88
  6. Step 6: Final answer
    x = 85,920.81

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1.5x scale

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.