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Finding the Fourth Proportional to 173,138.70, 259,708.05 and 166,226.70

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Solution

The fourth proportional to 173,138.70, 259,708.05 and 166,226.70 is: 249,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,138.70 : 259,708.05 = 166,226.70 : x
  2. Step 2: Convert to fraction form
    173,138.70/259,708.05 = 166,226.70/x
  3. Step 3: Cross multiply
    173,138.70x = 259,708.05 × 166,226.70
  4. Step 4: Simplify right side
    173,138.70x = 43,170,412,114.94
  5. Step 5: Solve for x
    x = 43,170,412,114.94/173,138.70
  6. Step 6: Final answer
    x = 249,340.05

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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.