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Finding the Fourth Proportional to 190,399.48, 285,599.22 and 96,970.84

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Solution

The fourth proportional to 190,399.48, 285,599.22 and 96,970.84 is: 145,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,399.48 : 285,599.22 = 96,970.84 : x
  2. Step 2: Convert to fraction form
    190,399.48/285,599.22 = 96,970.84/x
  3. Step 3: Cross multiply
    190,399.48x = 285,599.22 × 96,970.84
  4. Step 4: Simplify right side
    190,399.48x = 27,694,795,189.11
  5. Step 5: Solve for x
    x = 27,694,795,189.11/190,399.48
  6. Step 6: Final answer
    x = 145,456.26

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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.