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Finding the Fourth Proportional to 81,833,978, 122,767,137.57 and 30,019,061.87

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Solution

The fourth proportional to 81,833,978, 122,767,137.57 and 30,019,061.87 is: 45,034,524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,833,978 : 122,767,137.57 = 30,019,061.87 : x
  2. Step 2: Convert to fraction form
    81,833,978/122,767,137.57 = 30,019,061.87/x
  3. Step 3: Cross multiply
    81,833,978x = 122,767,137.57 × 30,019,061.87
  4. Step 4: Simplify right side
    81,833,978x = 3,685,354,298,316,631.50
  5. Step 5: Solve for x
    x = 3,685,354,298,316,631.50/81,833,978
  6. Step 6: Final answer
    x = 45,034,524.64

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