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Finding the Fourth Proportional to 219,954.20, 329,931.30 and 141,222.20

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Solution

The fourth proportional to 219,954.20, 329,931.30 and 141,222.20 is: 211,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,954.20 : 329,931.30 = 141,222.20 : x
  2. Step 2: Convert to fraction form
    219,954.20/329,931.30 = 141,222.20/x
  3. Step 3: Cross multiply
    219,954.20x = 329,931.30 × 141,222.20
  4. Step 4: Simplify right side
    219,954.20x = 46,593,624,034.86
  5. Step 5: Solve for x
    x = 46,593,624,034.86/219,954.20
  6. Step 6: Final answer
    x = 211,833.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.