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Finding the Fourth Proportional to 219,721, 303,214.98 and 119,119

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Solution

The fourth proportional to 219,721, 303,214.98 and 119,119 is: 164,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,721 : 303,214.98 = 119,119 : x
  2. Step 2: Convert to fraction form
    219,721/303,214.98 = 119,119/x
  3. Step 3: Cross multiply
    219,721x = 303,214.98 × 119,119
  4. Step 4: Simplify right side
    219,721x = 36,118,665,202.62
  5. Step 5: Solve for x
    x = 36,118,665,202.62/219,721
  6. Step 6: Final answer
    x = 164,384.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.