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Finding the Fourth Proportional to 560,979.92, 841,469.87 and 140,255.79

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Solution

The fourth proportional to 560,979.92, 841,469.87 and 140,255.79 is: 210,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,979.92 : 841,469.87 = 140,255.79 : x
  2. Step 2: Convert to fraction form
    560,979.92/841,469.87 = 140,255.79/x
  3. Step 3: Cross multiply
    560,979.92x = 841,469.87 × 140,255.79
  4. Step 4: Simplify right side
    560,979.92x = 118,021,023,306.44
  5. Step 5: Solve for x
    x = 118,021,023,306.44/560,979.92
  6. Step 6: Final answer
    x = 210,383.69

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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.