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Finding the Fourth Proportional to 215,407.14, 297,261.73 and 119,936.39

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Solution

The fourth proportional to 215,407.14, 297,261.73 and 119,936.39 is: 165,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,407.14 : 297,261.73 = 119,936.39 : x
  2. Step 2: Convert to fraction form
    215,407.14/297,261.73 = 119,936.39/x
  3. Step 3: Cross multiply
    215,407.14x = 297,261.73 × 119,936.39
  4. Step 4: Simplify right side
    215,407.14x = 35,652,498,781.35
  5. Step 5: Solve for x
    x = 35,652,498,781.35/215,407.14
  6. Step 6: Final answer
    x = 165,512.15

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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.