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Finding the Fourth Proportional to 219,520.94, 329,243.13 and 61,711.88

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Solution

The fourth proportional to 219,520.94, 329,243.13 and 61,711.88 is: 92,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,520.94 : 329,243.13 = 61,711.88 : x
  2. Step 2: Convert to fraction form
    219,520.94/329,243.13 = 61,711.88/x
  3. Step 3: Cross multiply
    219,520.94x = 329,243.13 × 61,711.88
  4. Step 4: Simplify right side
    219,520.94x = 20,318,210,883.17
  5. Step 5: Solve for x
    x = 20,318,210,883.17/219,520.94
  6. Step 6: Final answer
    x = 92,557.05

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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.