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Finding the Fourth Proportional to 8,189,093.80, 12,264,978.30 and 4,829,861.80

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Solution

The fourth proportional to 8,189,093.80, 12,264,978.30 and 4,829,861.80 is: 7,233,785.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189,093.80 : 12,264,978.30 = 4,829,861.80 : x
  2. Step 2: Convert to fraction form
    8,189,093.80/12,264,978.30 = 4,829,861.80/x
  3. Step 3: Cross multiply
    8,189,093.80x = 12,264,978.30 × 4,829,861.80
  4. Step 4: Simplify right side
    8,189,093.80x = 59,238,150,168,998.94
  5. Step 5: Solve for x
    x = 59,238,150,168,998.94/8,189,093.80
  6. Step 6: Final answer
    x = 7,233,785.77

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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.