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Finding the Fourth Proportional to 308,530.74, 462,865.37 and 108,852.78

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Solution

The fourth proportional to 308,530.74, 462,865.37 and 108,852.78 is: 163,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,530.74 : 462,865.37 = 108,852.78 : x
  2. Step 2: Convert to fraction form
    308,530.74/462,865.37 = 108,852.78/x
  3. Step 3: Cross multiply
    308,530.74x = 462,865.37 × 108,852.78
  4. Step 4: Simplify right side
    308,530.74x = 50,384,181,745.96
  5. Step 5: Solve for x
    x = 50,384,181,745.96/308,530.74
  6. Step 6: Final answer
    x = 163,303.60

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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.