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Finding the Fourth Proportional to 270,777.12, 406,165.44 and 73,785.12

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Solution

The fourth proportional to 270,777.12, 406,165.44 and 73,785.12 is: 110,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,777.12 : 406,165.44 = 73,785.12 : x
  2. Step 2: Convert to fraction form
    270,777.12/406,165.44 = 73,785.12/x
  3. Step 3: Cross multiply
    270,777.12x = 406,165.44 × 73,785.12
  4. Step 4: Simplify right side
    270,777.12x = 29,968,965,730.25
  5. Step 5: Solve for x
    x = 29,968,965,730.25/270,777.12
  6. Step 6: Final answer
    x = 110,677.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.