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Finding the Fourth Proportional to 235,342.90, 324,775.20 and 127,912.96

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Solution

The fourth proportional to 235,342.90, 324,775.20 and 127,912.96 is: 176,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,342.90 : 324,775.20 = 127,912.96 : x
  2. Step 2: Convert to fraction form
    235,342.90/324,775.20 = 127,912.96/x
  3. Step 3: Cross multiply
    235,342.90x = 324,775.20 × 127,912.96
  4. Step 4: Simplify right side
    235,342.90x = 41,542,957,166.59
  5. Step 5: Solve for x
    x = 41,542,957,166.59/235,342.90
  6. Step 6: Final answer
    x = 176,520.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.