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Finding the Fourth Proportional to 141,620.98, 195,443.97 and 77,958.10

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Solution

The fourth proportional to 141,620.98, 195,443.97 and 77,958.10 is: 107,586.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,620.98 : 195,443.97 = 77,958.10 : x
  2. Step 2: Convert to fraction form
    141,620.98/195,443.97 = 77,958.10/x
  3. Step 3: Cross multiply
    141,620.98x = 195,443.97 × 77,958.10
  4. Step 4: Simplify right side
    141,620.98x = 15,236,440,557.66
  5. Step 5: Solve for x
    x = 15,236,440,557.66/141,620.98
  6. Step 6: Final answer
    x = 107,586.04

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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.