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Finding the Fourth Proportional to 73,707.36, 100,902.36 and 73,180.32

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Solution

The fourth proportional to 73,707.36, 100,902.36 and 73,180.32 is: 100,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,707.36 : 100,902.36 = 73,180.32 : x
  2. Step 2: Convert to fraction form
    73,707.36/100,902.36 = 73,180.32/x
  3. Step 3: Cross multiply
    73,707.36x = 100,902.36 × 73,180.32
  4. Step 4: Simplify right side
    73,707.36x = 7,384,066,993.56
  5. Step 5: Solve for x
    x = 7,384,066,993.56/73,707.36
  6. Step 6: Final answer
    x = 100,180.86

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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.