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Finding the Fourth Proportional to 262,003.20, 393,004.80 and 75,014.70

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Solution

The fourth proportional to 262,003.20, 393,004.80 and 75,014.70 is: 112,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,003.20 : 393,004.80 = 75,014.70 : x
  2. Step 2: Convert to fraction form
    262,003.20/393,004.80 = 75,014.70/x
  3. Step 3: Cross multiply
    262,003.20x = 393,004.80 × 75,014.70
  4. Step 4: Simplify right side
    262,003.20x = 29,481,137,170.56
  5. Step 5: Solve for x
    x = 29,481,137,170.56/262,003.20
  6. Step 6: Final answer
    x = 112,522.05

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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.