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Finding the Fourth Proportional to 190,033.20, 284,982.60 and 65,345.20

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Solution

The fourth proportional to 190,033.20, 284,982.60 and 65,345.20 is: 97,994.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,033.20 : 284,982.60 = 65,345.20 : x
  2. Step 2: Convert to fraction form
    190,033.20/284,982.60 = 65,345.20/x
  3. Step 3: Cross multiply
    190,033.20x = 284,982.60 × 65,345.20
  4. Step 4: Simplify right side
    190,033.20x = 18,622,244,993.52
  5. Step 5: Solve for x
    x = 18,622,244,993.52/190,033.20
  6. Step 6: Final answer
    x = 97,994.69

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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.