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Finding the Fourth Proportional to 75,234.12, 103,834.12 and 43,396.80

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Solution

The fourth proportional to 75,234.12, 103,834.12 and 43,396.80 is: 59,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,234.12 : 103,834.12 = 43,396.80 : x
  2. Step 2: Convert to fraction form
    75,234.12/103,834.12 = 43,396.80/x
  3. Step 3: Cross multiply
    75,234.12x = 103,834.12 × 43,396.80
  4. Step 4: Simplify right side
    75,234.12x = 4,506,068,538.82
  5. Step 5: Solve for x
    x = 4,506,068,538.82/75,234.12
  6. Step 6: Final answer
    x = 59,893.95

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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.