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Finding the Fourth Proportional to 248,380.32, 372,573.92 and 70,887.28

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Solution

The fourth proportional to 248,380.32, 372,573.92 and 70,887.28 is: 106,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,380.32 : 372,573.92 = 70,887.28 : x
  2. Step 2: Convert to fraction form
    248,380.32/372,573.92 = 70,887.28/x
  3. Step 3: Cross multiply
    248,380.32x = 372,573.92 × 70,887.28
  4. Step 4: Simplify right side
    248,380.32x = 26,410,751,787.74
  5. Step 5: Solve for x
    x = 26,410,751,787.74/248,380.32
  6. Step 6: Final answer
    x = 106,331.90

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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.