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Finding the Fourth Proportional to 252,330.74, 378,431.44 and 74,796.24

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Solution

The fourth proportional to 252,330.74, 378,431.44 and 74,796.24 is: 112,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,330.74 : 378,431.44 = 74,796.24 : x
  2. Step 2: Convert to fraction form
    252,330.74/378,431.44 = 74,796.24/x
  3. Step 3: Cross multiply
    252,330.74x = 378,431.44 × 74,796.24
  4. Step 4: Simplify right side
    252,330.74x = 28,305,247,269.63
  5. Step 5: Solve for x
    x = 28,305,247,269.63/252,330.74
  6. Step 6: Final answer
    x = 112,175.18

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1.5x scale

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.