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Finding the Fourth Proportional to 172,910.14, 259,426.22 and 60,621.64

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Solution

The fourth proportional to 172,910.14, 259,426.22 and 60,621.64 is: 90,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,910.14 : 259,426.22 = 60,621.64 : x
  2. Step 2: Convert to fraction form
    172,910.14/259,426.22 = 60,621.64/x
  3. Step 3: Cross multiply
    172,910.14x = 259,426.22 × 60,621.64
  4. Step 4: Simplify right side
    172,910.14x = 15,726,842,915.40
  5. Step 5: Solve for x
    x = 15,726,842,915.40/172,910.14
  6. Step 6: Final answer
    x = 90,953.85

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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.