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Finding the Fourth Proportional to 115,980.94, 173,998.66 and 36,014.82

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Solution

The fourth proportional to 115,980.94, 173,998.66 and 36,014.82 is: 54,030.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,980.94 : 173,998.66 = 36,014.82 : x
  2. Step 2: Convert to fraction form
    115,980.94/173,998.66 = 36,014.82/x
  3. Step 3: Cross multiply
    115,980.94x = 173,998.66 × 36,014.82
  4. Step 4: Simplify right side
    115,980.94x = 6,266,530,420.14
  5. Step 5: Solve for x
    x = 6,266,530,420.14/115,980.94
  6. Step 6: Final answer
    x = 54,030.69

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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.