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Finding the Fourth Proportional to 294,493.60, 441,684.47 and 81,208.79

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Solution

The fourth proportional to 294,493.60, 441,684.47 and 81,208.79 is: 121,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,493.60 : 441,684.47 = 81,208.79 : x
  2. Step 2: Convert to fraction form
    294,493.60/441,684.47 = 81,208.79/x
  3. Step 3: Cross multiply
    294,493.60x = 441,684.47 × 81,208.79
  4. Step 4: Simplify right side
    294,493.60x = 35,868,659,365.09
  5. Step 5: Solve for x
    x = 35,868,659,365.09/294,493.60
  6. Step 6: Final answer
    x = 121,797.76

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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.