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Finding the Fourth Proportional to 141,892.54, 195,813.04 and 78,232.62

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Solution

The fourth proportional to 141,892.54, 195,813.04 and 78,232.62 is: 107,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,892.54 : 195,813.04 = 78,232.62 : x
  2. Step 2: Convert to fraction form
    141,892.54/195,813.04 = 78,232.62/x
  3. Step 3: Cross multiply
    141,892.54x = 195,813.04 × 78,232.62
  4. Step 4: Simplify right side
    141,892.54x = 15,318,967,149.36
  5. Step 5: Solve for x
    x = 15,318,967,149.36/141,892.54
  6. Step 6: Final answer
    x = 107,961.75

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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.