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Finding the Fourth Proportional to 77,149.01, 106,487.06 and 44,889.86

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Solution

The fourth proportional to 77,149.01, 106,487.06 and 44,889.86 is: 61,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,149.01 : 106,487.06 = 44,889.86 : x
  2. Step 2: Convert to fraction form
    77,149.01/106,487.06 = 44,889.86/x
  3. Step 3: Cross multiply
    77,149.01x = 106,487.06 × 44,889.86
  4. Step 4: Simplify right side
    77,149.01x = 4,780,189,256.98
  5. Step 5: Solve for x
    x = 4,780,189,256.98/77,149.01
  6. Step 6: Final answer
    x = 61,960.47

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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.