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Finding the Fourth Proportional to 141,936, 195,873.12 and 85,348.32

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Solution

The fourth proportional to 141,936, 195,873.12 and 85,348.32 is: 117,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,936 : 195,873.12 = 85,348.32 : x
  2. Step 2: Convert to fraction form
    141,936/195,873.12 = 85,348.32/x
  3. Step 3: Cross multiply
    141,936x = 195,873.12 × 85,348.32
  4. Step 4: Simplify right side
    141,936x = 16,717,441,725.16
  5. Step 5: Solve for x
    x = 16,717,441,725.16/141,936
  6. Step 6: Final answer
    x = 117,781.55

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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.