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Finding the Fourth Proportional to 236,458.56, 354,634.32 and 67,978.56

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Solution

The fourth proportional to 236,458.56, 354,634.32 and 67,978.56 is: 101,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,458.56 : 354,634.32 = 67,978.56 : x
  2. Step 2: Convert to fraction form
    236,458.56/354,634.32 = 67,978.56/x
  3. Step 3: Cross multiply
    236,458.56x = 354,634.32 × 67,978.56
  4. Step 4: Simplify right side
    236,458.56x = 24,107,530,400.18
  5. Step 5: Solve for x
    x = 24,107,530,400.18/236,458.56
  6. Step 6: Final answer
    x = 101,952.45

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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.