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Finding the Fourth Proportional to 219,096.30, 328,620.15 and 61,340.70

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Solution

The fourth proportional to 219,096.30, 328,620.15 and 61,340.70 is: 92,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,096.30 : 328,620.15 = 61,340.70 : x
  2. Step 2: Convert to fraction form
    219,096.30/328,620.15 = 61,340.70/x
  3. Step 3: Cross multiply
    219,096.30x = 328,620.15 × 61,340.70
  4. Step 4: Simplify right side
    219,096.30x = 20,157,790,035.11
  5. Step 5: Solve for x
    x = 20,157,790,035.11/219,096.30
  6. Step 6: Final answer
    x = 92,004.25

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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.