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Finding the Fourth Proportional to 262,593.70, 393,372.15 and 157,099.30

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Solution

The fourth proportional to 262,593.70, 393,372.15 and 157,099.30 is: 235,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,593.70 : 393,372.15 = 157,099.30 : x
  2. Step 2: Convert to fraction form
    262,593.70/393,372.15 = 157,099.30/x
  3. Step 3: Cross multiply
    262,593.70x = 393,372.15 × 157,099.30
  4. Step 4: Simplify right side
    262,593.70x = 61,798,489,404.50
  5. Step 5: Solve for x
    x = 61,798,489,404.50/262,593.70
  6. Step 6: Final answer
    x = 235,338.81

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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.