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Finding the Fourth Proportional to 73,626.06, 100,992.21 and 72,993.45

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Solution

The fourth proportional to 73,626.06, 100,992.21 and 72,993.45 is: 100,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,626.06 : 100,992.21 = 72,993.45 : x
  2. Step 2: Convert to fraction form
    73,626.06/100,992.21 = 72,993.45/x
  3. Step 3: Cross multiply
    73,626.06x = 100,992.21 × 72,993.45
  4. Step 4: Simplify right side
    73,626.06x = 7,371,769,831.02
  5. Step 5: Solve for x
    x = 7,371,769,831.02/73,626.06
  6. Step 6: Final answer
    x = 100,124.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.