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Finding the Fourth Proportional to 127,843.92, 191,757.96 and 39,090.42

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Solution

The fourth proportional to 127,843.92, 191,757.96 and 39,090.42 is: 58,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,843.92 : 191,757.96 = 39,090.42 : x
  2. Step 2: Convert to fraction form
    127,843.92/191,757.96 = 39,090.42/x
  3. Step 3: Cross multiply
    127,843.92x = 191,757.96 × 39,090.42
  4. Step 4: Simplify right side
    127,843.92x = 7,495,899,194.74
  5. Step 5: Solve for x
    x = 7,495,899,194.74/127,843.92
  6. Step 6: Final answer
    x = 58,633.21

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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.