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Finding the Fourth Proportional to 119,688.62, 179,539.08 and 30,942.89

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Solution

The fourth proportional to 119,688.62, 179,539.08 and 30,942.89 is: 46,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,688.62 : 179,539.08 = 30,942.89 : x
  2. Step 2: Convert to fraction form
    119,688.62/179,539.08 = 30,942.89/x
  3. Step 3: Cross multiply
    119,688.62x = 179,539.08 × 30,942.89
  4. Step 4: Simplify right side
    119,688.62x = 5,555,458,003.14
  5. Step 5: Solve for x
    x = 5,555,458,003.14/119,688.62
  6. Step 6: Final answer
    x = 46,415.92

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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.