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Finding the Fourth Proportional to 75,057.64, 103,578.72 and 41,066.80

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Solution

The fourth proportional to 75,057.64, 103,578.72 and 41,066.80 is: 56,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,057.64 : 103,578.72 = 41,066.80 : x
  2. Step 2: Convert to fraction form
    75,057.64/103,578.72 = 41,066.80/x
  3. Step 3: Cross multiply
    75,057.64x = 103,578.72 × 41,066.80
  4. Step 4: Simplify right side
    75,057.64x = 4,253,646,578.50
  5. Step 5: Solve for x
    x = 4,253,646,578.50/75,057.64
  6. Step 6: Final answer
    x = 56,671.73

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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.