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Finding the Fourth Proportional to 203,793.40, 305,690.10 and 164,427.40

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Solution

The fourth proportional to 203,793.40, 305,690.10 and 164,427.40 is: 246,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,793.40 : 305,690.10 = 164,427.40 : x
  2. Step 2: Convert to fraction form
    203,793.40/305,690.10 = 164,427.40/x
  3. Step 3: Cross multiply
    203,793.40x = 305,690.10 × 164,427.40
  4. Step 4: Simplify right side
    203,793.40x = 50,263,828,348.74
  5. Step 5: Solve for x
    x = 50,263,828,348.74/203,793.40
  6. Step 6: Final answer
    x = 246,641.10

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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.