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Finding the Fourth Proportional to 313,600.76, 470,474.10 and 103,240.52

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Solution

The fourth proportional to 313,600.76, 470,474.10 and 103,240.52 is: 154,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,600.76 : 470,474.10 = 103,240.52 : x
  2. Step 2: Convert to fraction form
    313,600.76/470,474.10 = 103,240.52/x
  3. Step 3: Cross multiply
    313,600.76x = 470,474.10 × 103,240.52
  4. Step 4: Simplify right side
    313,600.76x = 48,571,990,730.53
  5. Step 5: Solve for x
    x = 48,571,990,730.53/313,600.76
  6. Step 6: Final answer
    x = 154,884.80

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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.