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Finding the Fourth Proportional to 190,574.89, 285,481.22 and 114,631.48

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Solution

The fourth proportional to 190,574.89, 285,481.22 and 114,631.48 is: 171,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,574.89 : 285,481.22 = 114,631.48 : x
  2. Step 2: Convert to fraction form
    190,574.89/285,481.22 = 114,631.48/x
  3. Step 3: Cross multiply
    190,574.89x = 285,481.22 × 114,631.48
  4. Step 4: Simplify right side
    190,574.89x = 32,725,134,544.50
  5. Step 5: Solve for x
    x = 32,725,134,544.50/190,574.89
  6. Step 6: Final answer
    x = 171,717.98

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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.