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Finding the Fourth Proportional to 252,317.44, 378,549.22 and 74,828.72

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Solution

The fourth proportional to 252,317.44, 378,549.22 and 74,828.72 is: 112,264.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,317.44 : 378,549.22 = 74,828.72 : x
  2. Step 2: Convert to fraction form
    252,317.44/378,549.22 = 74,828.72/x
  3. Step 3: Cross multiply
    252,317.44x = 378,549.22 × 74,828.72
  4. Step 4: Simplify right side
    252,317.44x = 28,326,353,589.60
  5. Step 5: Solve for x
    x = 28,326,353,589.60/252,317.44
  6. Step 6: Final answer
    x = 112,264.75

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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.