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Finding the Fourth Proportional to 252,073.58, 377,979.15 and 74,556.64

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Solution

The fourth proportional to 252,073.58, 377,979.15 and 74,556.64 is: 111,796.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,073.58 : 377,979.15 = 74,556.64 : x
  2. Step 2: Convert to fraction form
    252,073.58/377,979.15 = 74,556.64/x
  3. Step 3: Cross multiply
    252,073.58x = 377,979.15 × 74,556.64
  4. Step 4: Simplify right side
    252,073.58x = 28,180,853,524.16
  5. Step 5: Solve for x
    x = 28,180,853,524.16/252,073.58
  6. Step 6: Final answer
    x = 111,796.14

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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.