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Finding the Fourth Proportional to 150,253.60, 225,344.40 and 86,936.80

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Solution

The fourth proportional to 150,253.60, 225,344.40 and 86,936.80 is: 130,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,253.60 : 225,344.40 = 86,936.80 : x
  2. Step 2: Convert to fraction form
    150,253.60/225,344.40 = 86,936.80/x
  3. Step 3: Cross multiply
    150,253.60x = 225,344.40 × 86,936.80
  4. Step 4: Simplify right side
    150,253.60x = 19,590,721,033.92
  5. Step 5: Solve for x
    x = 19,590,721,033.92/150,253.60
  6. Step 6: Final answer
    x = 130,384.37

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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.