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Finding the Fourth Proportional to 175,906.40, 263,362.80 and 136,918.40

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Solution

The fourth proportional to 175,906.40, 263,362.80 and 136,918.40 is: 204,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,906.40 : 263,362.80 = 136,918.40 : x
  2. Step 2: Convert to fraction form
    175,906.40/263,362.80 = 136,918.40/x
  3. Step 3: Cross multiply
    175,906.40x = 263,362.80 × 136,918.40
  4. Step 4: Simplify right side
    175,906.40x = 36,059,213,195.52
  5. Step 5: Solve for x
    x = 36,059,213,195.52/175,906.40
  6. Step 6: Final answer
    x = 204,990.91

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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.