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Finding the Fourth Proportional to 236,481.70, 354,722.55 and 147,908.20

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Solution

The fourth proportional to 236,481.70, 354,722.55 and 147,908.20 is: 221,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,481.70 : 354,722.55 = 147,908.20 : x
  2. Step 2: Convert to fraction form
    236,481.70/354,722.55 = 147,908.20/x
  3. Step 3: Cross multiply
    236,481.70x = 354,722.55 × 147,908.20
  4. Step 4: Simplify right side
    236,481.70x = 52,466,373,869.91
  5. Step 5: Solve for x
    x = 52,466,373,869.91/236,481.70
  6. Step 6: Final answer
    x = 221,862.30

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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.