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Finding the Fourth Proportional to 219,666.30, 329,561.46 and 61,896.12

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Solution

The fourth proportional to 219,666.30, 329,561.46 and 61,896.12 is: 92,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,666.30 : 329,561.46 = 61,896.12 : x
  2. Step 2: Convert to fraction form
    219,666.30/329,561.46 = 61,896.12/x
  3. Step 3: Cross multiply
    219,666.30x = 329,561.46 × 61,896.12
  4. Step 4: Simplify right side
    219,666.30x = 20,398,575,675.54
  5. Step 5: Solve for x
    x = 20,398,575,675.54/219,666.30
  6. Step 6: Final answer
    x = 92,861.65

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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.