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Finding the Fourth Proportional to 173,838.60, 260,834.70 and 80,296.20

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Solution

The fourth proportional to 173,838.60, 260,834.70 and 80,296.20 is: 120,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,838.60 : 260,834.70 = 80,296.20 : x
  2. Step 2: Convert to fraction form
    173,838.60/260,834.70 = 80,296.20/x
  3. Step 3: Cross multiply
    173,838.60x = 260,834.70 × 80,296.20
  4. Step 4: Simplify right side
    173,838.60x = 20,944,035,238.14
  5. Step 5: Solve for x
    x = 20,944,035,238.14/173,838.60
  6. Step 6: Final answer
    x = 120,479.77

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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.