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Finding the Fourth Proportional to 252,015.44, 378,077.40 and 125,723.60

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Solution

The fourth proportional to 252,015.44, 378,077.40 and 125,723.60 is: 188,612.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,015.44 : 378,077.40 = 125,723.60 : x
  2. Step 2: Convert to fraction form
    252,015.44/378,077.40 = 125,723.60/x
  3. Step 3: Cross multiply
    252,015.44x = 378,077.40 × 125,723.60
  4. Step 4: Simplify right side
    252,015.44x = 47,533,251,806.64
  5. Step 5: Solve for x
    x = 47,533,251,806.64/252,015.44
  6. Step 6: Final answer
    x = 188,612.46

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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.