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Finding the Fourth Proportional to 173,121.80, 259,682.70 and 125,882.60

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Solution

The fourth proportional to 173,121.80, 259,682.70 and 125,882.60 is: 188,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,121.80 : 259,682.70 = 125,882.60 : x
  2. Step 2: Convert to fraction form
    173,121.80/259,682.70 = 125,882.60/x
  3. Step 3: Cross multiply
    173,121.80x = 259,682.70 × 125,882.60
  4. Step 4: Simplify right side
    173,121.80x = 32,689,533,451.02
  5. Step 5: Solve for x
    x = 32,689,533,451.02/173,121.80
  6. Step 6: Final answer
    x = 188,823.90

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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.