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Finding the Fourth Proportional to 557,647.63, 836,469.79 and 158,288.74

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Solution

The fourth proportional to 557,647.63, 836,469.79 and 158,288.74 is: 237,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,647.63 : 836,469.79 = 158,288.74 : x
  2. Step 2: Convert to fraction form
    557,647.63/836,469.79 = 158,288.74/x
  3. Step 3: Cross multiply
    557,647.63x = 836,469.79 × 158,288.74
  4. Step 4: Simplify right side
    557,647.63x = 132,403,749,107.17
  5. Step 5: Solve for x
    x = 132,403,749,107.17/557,647.63
  6. Step 6: Final answer
    x = 237,432.64

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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.