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Finding the Fourth Proportional to 185,361.63, 278,039.84 and 73,042.82

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Solution

The fourth proportional to 185,361.63, 278,039.84 and 73,042.82 is: 109,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,361.63 : 278,039.84 = 73,042.82 : x
  2. Step 2: Convert to fraction form
    185,361.63/278,039.84 = 73,042.82/x
  3. Step 3: Cross multiply
    185,361.63x = 278,039.84 × 73,042.82
  4. Step 4: Simplify right side
    185,361.63x = 20,308,814,466.04
  5. Step 5: Solve for x
    x = 20,308,814,466.04/185,361.63
  6. Step 6: Final answer
    x = 109,563.20

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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.