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Finding the Fourth Proportional to 190,574.48, 285,861.72 and 65,847.44

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Solution

The fourth proportional to 190,574.48, 285,861.72 and 65,847.44 is: 98,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,574.48 : 285,861.72 = 65,847.44 : x
  2. Step 2: Convert to fraction form
    190,574.48/285,861.72 = 65,847.44/x
  3. Step 3: Cross multiply
    190,574.48x = 285,861.72 × 65,847.44
  4. Step 4: Simplify right side
    190,574.48x = 18,823,262,456.00
  5. Step 5: Solve for x
    x = 18,823,262,456.00/190,574.48
  6. Step 6: Final answer
    x = 98,771.16

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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.