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Finding the Fourth Proportional to 80,390.11, 110,936.64 and 46,395.94

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Solution

The fourth proportional to 80,390.11, 110,936.64 and 46,395.94 is: 64,025.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,390.11 : 110,936.64 = 46,395.94 : x
  2. Step 2: Convert to fraction form
    80,390.11/110,936.64 = 46,395.94/x
  3. Step 3: Cross multiply
    80,390.11x = 110,936.64 × 46,395.94
  4. Step 4: Simplify right side
    80,390.11x = 5,147,009,693.24
  5. Step 5: Solve for x
    x = 5,147,009,693.24/80,390.11
  6. Step 6: Final answer
    x = 64,025.41

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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.