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Finding the Fourth Proportional to 173,105.40, 259,658.10 and 164,940.60

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Solution

The fourth proportional to 173,105.40, 259,658.10 and 164,940.60 is: 247,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,105.40 : 259,658.10 = 164,940.60 : x
  2. Step 2: Convert to fraction form
    173,105.40/259,658.10 = 164,940.60/x
  3. Step 3: Cross multiply
    173,105.40x = 259,658.10 × 164,940.60
  4. Step 4: Simplify right side
    173,105.40x = 42,828,162,808.86
  5. Step 5: Solve for x
    x = 42,828,162,808.86/173,105.40
  6. Step 6: Final answer
    x = 247,410.90

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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.