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Finding the Fourth Proportional to 135,094.98, 186,453.74 and 91,467.74

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Solution

The fourth proportional to 135,094.98, 186,453.74 and 91,467.74 is: 126,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,094.98 : 186,453.74 = 91,467.74 : x
  2. Step 2: Convert to fraction form
    135,094.98/186,453.74 = 91,467.74/x
  3. Step 3: Cross multiply
    135,094.98x = 186,453.74 × 91,467.74
  4. Step 4: Simplify right side
    135,094.98x = 17,054,502,212.35
  5. Step 5: Solve for x
    x = 17,054,502,212.35/135,094.98
  6. Step 6: Final answer
    x = 126,240.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.