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Finding the Fourth Proportional to 252,173.52, 378,265.68 and 74,684.16

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Solution

The fourth proportional to 252,173.52, 378,265.68 and 74,684.16 is: 112,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,173.52 : 378,265.68 = 74,684.16 : x
  2. Step 2: Convert to fraction form
    252,173.52/378,265.68 = 74,684.16/x
  3. Step 3: Cross multiply
    252,173.52x = 378,265.68 × 74,684.16
  4. Step 4: Simplify right side
    252,173.52x = 28,250,454,567.63
  5. Step 5: Solve for x
    x = 28,250,454,567.63/252,173.52
  6. Step 6: Final answer
    x = 112,027.84

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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.