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Finding the Fourth Proportional to 104,068.72, 156,185.16 and 53,465.73

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Solution

The fourth proportional to 104,068.72, 156,185.16 and 53,465.73 is: 80,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,068.72 : 156,185.16 = 53,465.73 : x
  2. Step 2: Convert to fraction form
    104,068.72/156,185.16 = 53,465.73/x
  3. Step 3: Cross multiply
    104,068.72x = 156,185.16 × 53,465.73
  4. Step 4: Simplify right side
    104,068.72x = 8,350,553,594.57
  5. Step 5: Solve for x
    x = 8,350,553,594.57/104,068.72
  6. Step 6: Final answer
    x = 80,240.76

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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.