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Finding the Fourth Proportional to 175,592.80, 263,086.80 and 81,906.40

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Solution

The fourth proportional to 175,592.80, 263,086.80 and 81,906.40 is: 122,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,592.80 : 263,086.80 = 81,906.40 : x
  2. Step 2: Convert to fraction form
    175,592.80/263,086.80 = 81,906.40/x
  3. Step 3: Cross multiply
    175,592.80x = 263,086.80 × 81,906.40
  4. Step 4: Simplify right side
    175,592.80x = 21,548,492,675.52
  5. Step 5: Solve for x
    x = 21,548,492,675.52/175,592.80
  6. Step 6: Final answer
    x = 122,718.54

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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.