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Finding the Fourth Proportional to 194,175.20, 291,262.80 and 75,850.40

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Solution

The fourth proportional to 194,175.20, 291,262.80 and 75,850.40 is: 113,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,175.20 : 291,262.80 = 75,850.40 : x
  2. Step 2: Convert to fraction form
    194,175.20/291,262.80 = 75,850.40/x
  3. Step 3: Cross multiply
    194,175.20x = 291,262.80 × 75,850.40
  4. Step 4: Simplify right side
    194,175.20x = 22,092,399,885.12
  5. Step 5: Solve for x
    x = 22,092,399,885.12/194,175.20
  6. Step 6: Final answer
    x = 113,775.60

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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.