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Finding the Fourth Proportional to 173,628.60, 260,442.90 and 55,311.90

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Solution

The fourth proportional to 173,628.60, 260,442.90 and 55,311.90 is: 82,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,628.60 : 260,442.90 = 55,311.90 : x
  2. Step 2: Convert to fraction form
    173,628.60/260,442.90 = 55,311.90/x
  3. Step 3: Cross multiply
    173,628.60x = 260,442.90 × 55,311.90
  4. Step 4: Simplify right side
    173,628.60x = 14,405,591,640.51
  5. Step 5: Solve for x
    x = 14,405,591,640.51/173,628.60
  6. Step 6: Final answer
    x = 82,967.85

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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.