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Finding the Fourth Proportional to 191,512.82, 264,297.12 and 106,628.06

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Solution

The fourth proportional to 191,512.82, 264,297.12 and 106,628.06 is: 147,151.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,512.82 : 264,297.12 = 106,628.06 : x
  2. Step 2: Convert to fraction form
    191,512.82/264,297.12 = 106,628.06/x
  3. Step 3: Cross multiply
    191,512.82x = 264,297.12 × 106,628.06
  4. Step 4: Simplify right side
    191,512.82x = 28,181,489,169.19
  5. Step 5: Solve for x
    x = 28,181,489,169.19/191,512.82
  6. Step 6: Final answer
    x = 147,151.97

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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.