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Finding the Fourth Proportional to 262,343.54, 393,551.96 and 129,224.90

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Solution

The fourth proportional to 262,343.54, 393,551.96 and 129,224.90 is: 193,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,343.54 : 393,551.96 = 129,224.90 : x
  2. Step 2: Convert to fraction form
    262,343.54/393,551.96 = 129,224.90/x
  3. Step 3: Cross multiply
    262,343.54x = 393,551.96 × 129,224.90
  4. Step 4: Simplify right side
    262,343.54x = 50,856,712,675.80
  5. Step 5: Solve for x
    x = 50,856,712,675.80/262,343.54
  6. Step 6: Final answer
    x = 193,855.40

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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.