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Finding the Fourth Proportional to 119,921.94, 179,686.04 and 40,993.11

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Solution

The fourth proportional to 119,921.94, 179,686.04 and 40,993.11 is: 61,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,921.94 : 179,686.04 = 40,993.11 : x
  2. Step 2: Convert to fraction form
    119,921.94/179,686.04 = 40,993.11/x
  3. Step 3: Cross multiply
    119,921.94x = 179,686.04 × 40,993.11
  4. Step 4: Simplify right side
    119,921.94x = 7,365,889,398.22
  5. Step 5: Solve for x
    x = 7,365,889,398.22/119,921.94
  6. Step 6: Final answer
    x = 61,422.37

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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.