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Finding the Fourth Proportional to 140,999.94, 194,576.58 and 77,337.18

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Solution

The fourth proportional to 140,999.94, 194,576.58 and 77,337.18 is: 106,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,999.94 : 194,576.58 = 77,337.18 : x
  2. Step 2: Convert to fraction form
    140,999.94/194,576.58 = 77,337.18/x
  3. Step 3: Cross multiply
    140,999.94x = 194,576.58 × 77,337.18
  4. Step 4: Simplify right side
    140,999.94x = 15,048,003,991.24
  5. Step 5: Solve for x
    x = 15,048,003,991.24/140,999.94
  6. Step 6: Final answer
    x = 106,723.48

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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.