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Finding the Fourth Proportional to 190,553.86, 285,629.19 and 64,073.62

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Solution

The fourth proportional to 190,553.86, 285,629.19 and 64,073.62 is: 96,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,553.86 : 285,629.19 = 64,073.62 : x
  2. Step 2: Convert to fraction form
    190,553.86/285,629.19 = 64,073.62/x
  3. Step 3: Cross multiply
    190,553.86x = 285,629.19 × 64,073.62
  4. Step 4: Simplify right side
    190,553.86x = 18,301,296,180.97
  5. Step 5: Solve for x
    x = 18,301,296,180.97/190,553.86
  6. Step 6: Final answer
    x = 96,042.64

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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.