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Finding the Fourth Proportional to 221,888.40, 332,638.20 and 133,047.60

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Solution

The fourth proportional to 221,888.40, 332,638.20 and 133,047.60 is: 199,454.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,888.40 : 332,638.20 = 133,047.60 : x
  2. Step 2: Convert to fraction form
    221,888.40/332,638.20 = 133,047.60/x
  3. Step 3: Cross multiply
    221,888.40x = 332,638.20 × 133,047.60
  4. Step 4: Simplify right side
    221,888.40x = 44,256,714,178.32
  5. Step 5: Solve for x
    x = 44,256,714,178.32/221,888.40
  6. Step 6: Final answer
    x = 199,454.83

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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.