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Finding the Fourth Proportional to 231,007.26, 346,649.12 and 99,679.26

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Solution

The fourth proportional to 231,007.26, 346,649.12 and 99,679.26 is: 149,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,007.26 : 346,649.12 = 99,679.26 : x
  2. Step 2: Convert to fraction form
    231,007.26/346,649.12 = 99,679.26/x
  3. Step 3: Cross multiply
    231,007.26x = 346,649.12 × 99,679.26
  4. Step 4: Simplify right side
    231,007.26x = 34,553,727,761.25
  5. Step 5: Solve for x
    x = 34,553,727,761.25/231,007.26
  6. Step 6: Final answer
    x = 149,578.54

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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.