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Finding the Fourth Proportional to 252,315.95, 378,546.96 and 74,827.23

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Solution

The fourth proportional to 252,315.95, 378,546.96 and 74,827.23 is: 112,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,315.95 : 378,546.96 = 74,827.23 : x
  2. Step 2: Convert to fraction form
    252,315.95/378,546.96 = 74,827.23/x
  3. Step 3: Cross multiply
    252,315.95x = 378,546.96 × 74,827.23
  4. Step 4: Simplify right side
    252,315.95x = 28,325,620,441.72
  5. Step 5: Solve for x
    x = 28,325,620,441.72/252,315.95
  6. Step 6: Final answer
    x = 112,262.51

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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.