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Finding the Fourth Proportional to 16,111,978.80, 24,167,968.20 and 9,741,879.60

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Solution

The fourth proportional to 16,111,978.80, 24,167,968.20 and 9,741,879.60 is: 14,612,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,111,978.80 : 24,167,968.20 = 9,741,879.60 : x
  2. Step 2: Convert to fraction form
    16,111,978.80/24,167,968.20 = 9,741,879.60/x
  3. Step 3: Cross multiply
    16,111,978.80x = 24,167,968.20 × 9,741,879.60
  4. Step 4: Simplify right side
    16,111,978.80x = 235,441,436,381,028.72
  5. Step 5: Solve for x
    x = 235,441,436,381,028.72/16,111,978.80
  6. Step 6: Final answer
    x = 14,612,819.40

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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.