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Finding the Fourth Proportional to 250,141.91, 375,218.40 and 90,230.63

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Solution

The fourth proportional to 250,141.91, 375,218.40 and 90,230.63 is: 135,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,141.91 : 375,218.40 = 90,230.63 : x
  2. Step 2: Convert to fraction form
    250,141.91/375,218.40 = 90,230.63/x
  3. Step 3: Cross multiply
    250,141.91x = 375,218.40 × 90,230.63
  4. Step 4: Simplify right side
    250,141.91x = 33,856,192,619.59
  5. Step 5: Solve for x
    x = 33,856,192,619.59/250,141.91
  6. Step 6: Final answer
    x = 135,347.94

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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.