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Finding the Fourth Proportional to 235,187.88, 324,467.55 and 133,189.80

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Solution

The fourth proportional to 235,187.88, 324,467.55 and 133,189.80 is: 183,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,187.88 : 324,467.55 = 133,189.80 : x
  2. Step 2: Convert to fraction form
    235,187.88/324,467.55 = 133,189.80/x
  3. Step 3: Cross multiply
    235,187.88x = 324,467.55 × 133,189.80
  4. Step 4: Simplify right side
    235,187.88x = 43,215,768,090.99
  5. Step 5: Solve for x
    x = 43,215,768,090.99/235,187.88
  6. Step 6: Final answer
    x = 183,749.98

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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.