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Finding the Fourth Proportional to 191,721, 264,580.39 and 106,843.53

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Solution

The fourth proportional to 191,721, 264,580.39 and 106,843.53 is: 147,447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,721 : 264,580.39 = 106,843.53 : x
  2. Step 2: Convert to fraction form
    191,721/264,580.39 = 106,843.53/x
  3. Step 3: Cross multiply
    191,721x = 264,580.39 × 106,843.53
  4. Step 4: Simplify right side
    191,721x = 28,268,702,836.38
  5. Step 5: Solve for x
    x = 28,268,702,836.38/191,721
  6. Step 6: Final answer
    x = 147,447.09

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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.