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Finding the Fourth Proportional to 273,992,405.45, 411,049,059.57 and 79,919,009.60

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Solution

The fourth proportional to 273,992,405.45, 411,049,059.57 and 79,919,009.60 is: 119,896,147.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,992,405.45 : 411,049,059.57 = 79,919,009.60 : x
  2. Step 2: Convert to fraction form
    273,992,405.45/411,049,059.57 = 79,919,009.60/x
  3. Step 3: Cross multiply
    273,992,405.45x = 411,049,059.57 × 79,919,009.60
  4. Step 4: Simplify right side
    273,992,405.45x = 32,850,633,735,790,556
  5. Step 5: Solve for x
    x = 32,850,633,735,790,556/273,992,405.45
  6. Step 6: Final answer
    x = 119,896,147.06

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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.