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Finding the Fourth Proportional to 308,726.25, 462,958.02 and 190,365.81

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Solution

The fourth proportional to 308,726.25, 462,958.02 and 190,365.81 is: 285,467.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,726.25 : 462,958.02 = 190,365.81 : x
  2. Step 2: Convert to fraction form
    308,726.25/462,958.02 = 190,365.81/x
  3. Step 3: Cross multiply
    308,726.25x = 462,958.02 × 190,365.81
  4. Step 4: Simplify right side
    308,726.25x = 88,131,378,473.30
  5. Step 5: Solve for x
    x = 88,131,378,473.30/308,726.25
  6. Step 6: Final answer
    x = 285,467.72

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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.