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Finding the Fourth Proportional to 173,396.70, 260,043.21 and 90,245.34

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Solution

The fourth proportional to 173,396.70, 260,043.21 and 90,245.34 is: 135,341.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,396.70 : 260,043.21 = 90,245.34 : x
  2. Step 2: Convert to fraction form
    173,396.70/260,043.21 = 90,245.34/x
  3. Step 3: Cross multiply
    173,396.70x = 260,043.21 × 90,245.34
  4. Step 4: Simplify right side
    173,396.70x = 23,467,687,901.14
  5. Step 5: Solve for x
    x = 23,467,687,901.14/173,396.70
  6. Step 6: Final answer
    x = 135,341.03

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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.