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Finding the Fourth Proportional to 436,254.61, 654,396.49 and 120,685.09

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Solution

The fourth proportional to 436,254.61, 654,396.49 and 120,685.09 is: 181,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,254.61 : 654,396.49 = 120,685.09 : x
  2. Step 2: Convert to fraction form
    436,254.61/654,396.49 = 120,685.09/x
  3. Step 3: Cross multiply
    436,254.61x = 654,396.49 × 120,685.09
  4. Step 4: Simplify right side
    436,254.61x = 78,975,899,291.33
  5. Step 5: Solve for x
    x = 78,975,899,291.33/436,254.61
  6. Step 6: Final answer
    x = 181,031.67

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