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Finding the Fourth Proportional to 119,958.99, 179,938.71 and 31,212.34

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Solution

The fourth proportional to 119,958.99, 179,938.71 and 31,212.34 is: 46,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,958.99 : 179,938.71 = 31,212.34 : x
  2. Step 2: Convert to fraction form
    119,958.99/179,938.71 = 31,212.34/x
  3. Step 3: Cross multiply
    119,958.99x = 179,938.71 × 31,212.34
  4. Step 4: Simplify right side
    119,958.99x = 5,616,308,195.68
  5. Step 5: Solve for x
    x = 5,616,308,195.68/119,958.99
  6. Step 6: Final answer
    x = 46,818.57

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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.