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Finding the Fourth Proportional to 224,412.36, 336,327.70 and 91,137.80

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Solution

The fourth proportional to 224,412.36, 336,327.70 and 91,137.80 is: 136,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,412.36 : 336,327.70 = 91,137.80 : x
  2. Step 2: Convert to fraction form
    224,412.36/336,327.70 = 91,137.80/x
  3. Step 3: Cross multiply
    224,412.36x = 336,327.70 × 91,137.80
  4. Step 4: Simplify right side
    224,412.36x = 30,652,164,519.73
  5. Step 5: Solve for x
    x = 30,652,164,519.73/224,412.36
  6. Step 6: Final answer
    x = 136,588.58

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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.