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Finding the Fourth Proportional to 308,539.50, 462,845.97 and 108,818.46

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Solution

The fourth proportional to 308,539.50, 462,845.97 and 108,818.46 is: 163,240.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,539.50 : 462,845.97 = 108,818.46 : x
  2. Step 2: Convert to fraction form
    308,539.50/462,845.97 = 108,818.46/x
  3. Step 3: Cross multiply
    308,539.50x = 462,845.97 × 108,818.46
  4. Step 4: Simplify right side
    308,539.50x = 50,366,185,672.61
  5. Step 5: Solve for x
    x = 50,366,185,672.61/308,539.50
  6. Step 6: Final answer
    x = 163,240.64

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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.