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Finding the Fourth Proportional to 117,063.79, 175,540.92 and 42,174.07

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Solution

The fourth proportional to 117,063.79, 175,540.92 and 42,174.07 is: 63,241.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,063.79 : 175,540.92 = 42,174.07 : x
  2. Step 2: Convert to fraction form
    117,063.79/175,540.92 = 42,174.07/x
  3. Step 3: Cross multiply
    117,063.79x = 175,540.92 × 42,174.07
  4. Step 4: Simplify right side
    117,063.79x = 7,403,275,799.01
  5. Step 5: Solve for x
    x = 7,403,275,799.01/117,063.79
  6. Step 6: Final answer
    x = 63,241.38

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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.