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Finding the Fourth Proportional to 199,406.89, 275,025.90 and 127,793.53

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Solution

The fourth proportional to 199,406.89, 275,025.90 and 127,793.53 is: 176,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,406.89 : 275,025.90 = 127,793.53 : x
  2. Step 2: Convert to fraction form
    199,406.89/275,025.90 = 127,793.53/x
  3. Step 3: Cross multiply
    199,406.89x = 275,025.90 × 127,793.53
  4. Step 4: Simplify right side
    199,406.89x = 35,146,530,602.43
  5. Step 5: Solve for x
    x = 35,146,530,602.43/199,406.89
  6. Step 6: Final answer
    x = 176,255.35

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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.