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Finding the Fourth Proportional to 219,763.91, 329,669.96 and 69,951.58

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Solution

The fourth proportional to 219,763.91, 329,669.96 and 69,951.58 is: 104,935.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,763.91 : 329,669.96 = 69,951.58 : x
  2. Step 2: Convert to fraction form
    219,763.91/329,669.96 = 69,951.58/x
  3. Step 3: Cross multiply
    219,763.91x = 329,669.96 × 69,951.58
  4. Step 4: Simplify right side
    219,763.91x = 23,060,934,580.54
  5. Step 5: Solve for x
    x = 23,060,934,580.54/219,763.91
  6. Step 6: Final answer
    x = 104,935.04

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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.