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Finding the Fourth Proportional to 219,633, 303,093.60 and 119,031

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Solution

The fourth proportional to 219,633, 303,093.60 and 119,031 is: 164,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,633 : 303,093.60 = 119,031 : x
  2. Step 2: Convert to fraction form
    219,633/303,093.60 = 119,031/x
  3. Step 3: Cross multiply
    219,633x = 303,093.60 × 119,031
  4. Step 4: Simplify right side
    219,633x = 36,077,534,301.60
  5. Step 5: Solve for x
    x = 36,077,534,301.60/219,633
  6. Step 6: Final answer
    x = 164,262.81

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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.