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Finding the Fourth Proportional to 351,358.26, 527,035.49 and 85,118.64

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Solution

The fourth proportional to 351,358.26, 527,035.49 and 85,118.64 is: 127,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,358.26 : 527,035.49 = 85,118.64 : x
  2. Step 2: Convert to fraction form
    351,358.26/527,035.49 = 85,118.64/x
  3. Step 3: Cross multiply
    351,358.26x = 527,035.49 × 85,118.64
  4. Step 4: Simplify right side
    351,358.26x = 44,860,541,505.36
  5. Step 5: Solve for x
    x = 44,860,541,505.36/351,358.26
  6. Step 6: Final answer
    x = 127,677.49

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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.