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Finding the Fourth Proportional to 219,969.81, 303,558.35 and 119,367.81

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Solution

The fourth proportional to 219,969.81, 303,558.35 and 119,367.81 is: 164,727.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,969.81 : 303,558.35 = 119,367.81 : x
  2. Step 2: Convert to fraction form
    219,969.81/303,558.35 = 119,367.81/x
  3. Step 3: Cross multiply
    219,969.81x = 303,558.35 × 119,367.81
  4. Step 4: Simplify right side
    219,969.81x = 36,235,094,849.87
  5. Step 5: Solve for x
    x = 36,235,094,849.87/219,969.81
  6. Step 6: Final answer
    x = 164,727.58

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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.