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Finding the Fourth Proportional to 351,608.56, 527,354.52 and 126,925.90

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Solution

The fourth proportional to 351,608.56, 527,354.52 and 126,925.90 is: 190,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,608.56 : 527,354.52 = 126,925.90 : x
  2. Step 2: Convert to fraction form
    351,608.56/527,354.52 = 126,925.90/x
  3. Step 3: Cross multiply
    351,608.56x = 527,354.52 × 126,925.90
  4. Step 4: Simplify right side
    351,608.56x = 66,934,947,070.07
  5. Step 5: Solve for x
    x = 66,934,947,070.07/351,608.56
  6. Step 6: Final answer
    x = 190,367.80

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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.