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Finding the Fourth Proportional to 250,653.48, 376,004.02 and 90,769.80

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Solution

The fourth proportional to 250,653.48, 376,004.02 and 90,769.80 is: 136,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,653.48 : 376,004.02 = 90,769.80 : x
  2. Step 2: Convert to fraction form
    250,653.48/376,004.02 = 90,769.80/x
  3. Step 3: Cross multiply
    250,653.48x = 376,004.02 × 90,769.80
  4. Step 4: Simplify right side
    250,653.48x = 34,129,809,694.60
  5. Step 5: Solve for x
    x = 34,129,809,694.60/250,653.48
  6. Step 6: Final answer
    x = 136,163.32

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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.