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Finding the Fourth Proportional to 255,978,031.05, 383,984,072.75 and 89,961,457.31

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Solution

The fourth proportional to 255,978,031.05, 383,984,072.75 and 89,961,457.31 is: 134,948,169.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,978,031.05 : 383,984,072.75 = 89,961,457.31 : x
  2. Step 2: Convert to fraction form
    255,978,031.05/383,984,072.75 = 89,961,457.31/x
  3. Step 3: Cross multiply
    255,978,031.05x = 383,984,072.75 × 89,961,457.31
  4. Step 4: Simplify right side
    255,978,031.05x = 34,543,766,768,419,060
  5. Step 5: Solve for x
    x = 34,543,766,768,419,060/255,978,031.05
  6. Step 6: Final answer
    x = 134,948,169.68

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