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Finding the Fourth Proportional to 226,293.72, 312,250.62 and 130,781.97

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Solution

The fourth proportional to 226,293.72, 312,250.62 and 130,781.97 is: 180,459.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,293.72 : 312,250.62 = 130,781.97 : x
  2. Step 2: Convert to fraction form
    226,293.72/312,250.62 = 130,781.97/x
  3. Step 3: Cross multiply
    226,293.72x = 312,250.62 × 130,781.97
  4. Step 4: Simplify right side
    226,293.72x = 40,836,751,217.32
  5. Step 5: Solve for x
    x = 40,836,751,217.32/226,293.72
  6. Step 6: Final answer
    x = 180,459.06

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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.