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Finding the Fourth Proportional to 141,994.80, 212,811.30 and 75,466.80

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Solution

The fourth proportional to 141,994.80, 212,811.30 and 75,466.80 is: 113,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,994.80 : 212,811.30 = 75,466.80 : x
  2. Step 2: Convert to fraction form
    141,994.80/212,811.30 = 75,466.80/x
  3. Step 3: Cross multiply
    141,994.80x = 212,811.30 × 75,466.80
  4. Step 4: Simplify right side
    141,994.80x = 16,060,187,814.84
  5. Step 5: Solve for x
    x = 16,060,187,814.84/141,994.80
  6. Step 6: Final answer
    x = 113,104.06

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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.