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Finding the Fourth Proportional to 73,843.36, 102,196.22 and 72,074.32

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Solution

The fourth proportional to 73,843.36, 102,196.22 and 72,074.32 is: 99,747.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,843.36 : 102,196.22 = 72,074.32 : x
  2. Step 2: Convert to fraction form
    73,843.36/102,196.22 = 72,074.32/x
  3. Step 3: Cross multiply
    73,843.36x = 102,196.22 × 72,074.32
  4. Step 4: Simplify right side
    73,843.36x = 7,365,723,063.07
  5. Step 5: Solve for x
    x = 7,365,723,063.07/73,843.36
  6. Step 6: Final answer
    x = 99,747.94

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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.