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Finding the Fourth Proportional to 190,410.40, 285,615.60 and 159,997.60

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Solution

The fourth proportional to 190,410.40, 285,615.60 and 159,997.60 is: 239,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,410.40 : 285,615.60 = 159,997.60 : x
  2. Step 2: Convert to fraction form
    190,410.40/285,615.60 = 159,997.60/x
  3. Step 3: Cross multiply
    190,410.40x = 285,615.60 × 159,997.60
  4. Step 4: Simplify right side
    190,410.40x = 45,697,810,522.56
  5. Step 5: Solve for x
    x = 45,697,810,522.56/190,410.40
  6. Step 6: Final answer
    x = 239,996.40

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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.