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Finding the Fourth Proportional to 372,120.63, 557,996.85 and 158,855.31

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Solution

The fourth proportional to 372,120.63, 557,996.85 and 158,855.31 is: 238,204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,120.63 : 557,996.85 = 158,855.31 : x
  2. Step 2: Convert to fraction form
    372,120.63/557,996.85 = 158,855.31/x
  3. Step 3: Cross multiply
    372,120.63x = 557,996.85 × 158,855.31
  4. Step 4: Simplify right side
    372,120.63x = 88,640,762,585.77
  5. Step 5: Solve for x
    x = 88,640,762,585.77/372,120.63
  6. Step 6: Final answer
    x = 238,204.38

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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.