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Finding the Fourth Proportional to 190,403.94, 285,737.13 and 65,744.94

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Solution

The fourth proportional to 190,403.94, 285,737.13 and 65,744.94 is: 98,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,403.94 : 285,737.13 = 65,744.94 : x
  2. Step 2: Convert to fraction form
    190,403.94/285,737.13 = 65,744.94/x
  3. Step 3: Cross multiply
    190,403.94x = 285,737.13 × 65,744.94
  4. Step 4: Simplify right side
    190,403.94x = 18,785,770,467.62
  5. Step 5: Solve for x
    x = 18,785,770,467.62/190,403.94
  6. Step 6: Final answer
    x = 98,662.72

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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.