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Finding the Fourth Proportional to 172,906.60, 259,554.30 and 133,637.80

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Solution

The fourth proportional to 172,906.60, 259,554.30 and 133,637.80 is: 200,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,906.60 : 259,554.30 = 133,637.80 : x
  2. Step 2: Convert to fraction form
    172,906.60/259,554.30 = 133,637.80/x
  3. Step 3: Cross multiply
    172,906.60x = 259,554.30 × 133,637.80
  4. Step 4: Simplify right side
    172,906.60x = 34,686,265,632.54
  5. Step 5: Solve for x
    x = 34,686,265,632.54/172,906.60
  6. Step 6: Final answer
    x = 200,606.95

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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.