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Finding the Fourth Proportional to 319,505.55, 478,851.30 and 169,817.55

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Solution

The fourth proportional to 319,505.55, 478,851.30 and 169,817.55 is: 254,509.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,505.55 : 478,851.30 = 169,817.55 : x
  2. Step 2: Convert to fraction form
    319,505.55/478,851.30 = 169,817.55/x
  3. Step 3: Cross multiply
    319,505.55x = 478,851.30 × 169,817.55
  4. Step 4: Simplify right side
    319,505.55x = 81,317,354,580.32
  5. Step 5: Solve for x
    x = 81,317,354,580.32/319,505.55
  6. Step 6: Final answer
    x = 254,509.99

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