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Finding the Fourth Proportional to 146,493.20, 220,177.20 and 127,247.60

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Solution

The fourth proportional to 146,493.20, 220,177.20 and 127,247.60 is: 191,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,493.20 : 220,177.20 = 127,247.60 : x
  2. Step 2: Convert to fraction form
    146,493.20/220,177.20 = 127,247.60/x
  3. Step 3: Cross multiply
    146,493.20x = 220,177.20 × 127,247.60
  4. Step 4: Simplify right side
    146,493.20x = 28,017,020,274.72
  5. Step 5: Solve for x
    x = 28,017,020,274.72/146,493.20
  6. Step 6: Final answer
    x = 191,251.34

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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.