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Finding the Fourth Proportional to 322,810.92, 445,447.80 and 186,817.92

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Solution

The fourth proportional to 322,810.92, 445,447.80 and 186,817.92 is: 257,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,810.92 : 445,447.80 = 186,817.92 : x
  2. Step 2: Convert to fraction form
    322,810.92/445,447.80 = 186,817.92/x
  3. Step 3: Cross multiply
    322,810.92x = 445,447.80 × 186,817.92
  4. Step 4: Simplify right side
    322,810.92x = 83,217,631,464.58
  5. Step 5: Solve for x
    x = 83,217,631,464.58/322,810.92
  6. Step 6: Final answer
    x = 257,790.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.