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Finding the Fourth Proportional to 139,375,866.14, 192,362,771.03 and 80,670,900.38

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Solution

The fourth proportional to 139,375,866.14, 192,362,771.03 and 80,670,900.38 is: 111,339,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,375,866.14 : 192,362,771.03 = 80,670,900.38 : x
  2. Step 2: Convert to fraction form
    139,375,866.14/192,362,771.03 = 80,670,900.38/x
  3. Step 3: Cross multiply
    139,375,866.14x = 192,362,771.03 × 80,670,900.38
  4. Step 4: Simplify right side
    139,375,866.14x = 15,518,077,937,216,712
  5. Step 5: Solve for x
    x = 15,518,077,937,216,712/139,375,866.14
  6. Step 6: Final answer
    x = 111,339,777.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.