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Finding the Fourth Proportional to 173,362.10, 260,043.15 and 90,245.30

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Solution

The fourth proportional to 173,362.10, 260,043.15 and 90,245.30 is: 135,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,362.10 : 260,043.15 = 90,245.30 : x
  2. Step 2: Convert to fraction form
    173,362.10/260,043.15 = 90,245.30/x
  3. Step 3: Cross multiply
    173,362.10x = 260,043.15 × 90,245.30
  4. Step 4: Simplify right side
    173,362.10x = 23,467,672,084.70
  5. Step 5: Solve for x
    x = 23,467,672,084.70/173,362.10
  6. Step 6: Final answer
    x = 135,367.95

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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.