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Finding the Fourth Proportional to 231,333.70, 347,000.55 and 73,578.10

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Solution

The fourth proportional to 231,333.70, 347,000.55 and 73,578.10 is: 110,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,333.70 : 347,000.55 = 73,578.10 : x
  2. Step 2: Convert to fraction form
    231,333.70/347,000.55 = 73,578.10/x
  3. Step 3: Cross multiply
    231,333.70x = 347,000.55 × 73,578.10
  4. Step 4: Simplify right side
    231,333.70x = 25,531,641,167.96
  5. Step 5: Solve for x
    x = 25,531,641,167.96/231,333.70
  6. Step 6: Final answer
    x = 110,367.15

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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.