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Finding the Fourth Proportional to 140,995.00, 194,576.13 and 77,332.64

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Solution

The fourth proportional to 140,995.00, 194,576.13 and 77,332.64 is: 106,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,995.00 : 194,576.13 = 77,332.64 : x
  2. Step 2: Convert to fraction form
    140,995.00/194,576.13 = 77,332.64/x
  3. Step 3: Cross multiply
    140,995.00x = 194,576.13 × 77,332.64
  4. Step 4: Simplify right side
    140,995.00x = 15,047,085,813.88
  5. Step 5: Solve for x
    x = 15,047,085,813.88/140,995.00
  6. Step 6: Final answer
    x = 106,720.71

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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.