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Finding the Fourth Proportional to 121,493.33, 182,241.62 and 42,609.86

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Solution

The fourth proportional to 121,493.33, 182,241.62 and 42,609.86 is: 63,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,493.33 : 182,241.62 = 42,609.86 : x
  2. Step 2: Convert to fraction form
    121,493.33/182,241.62 = 42,609.86/x
  3. Step 3: Cross multiply
    121,493.33x = 182,241.62 × 42,609.86
  4. Step 4: Simplify right side
    121,493.33x = 7,765,289,914.37
  5. Step 5: Solve for x
    x = 7,765,289,914.37/121,493.33
  6. Step 6: Final answer
    x = 63,915.36

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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.