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Finding the Fourth Proportional to 144,423.55, 216,566.95 and 84,469.38

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Solution

The fourth proportional to 144,423.55, 216,566.95 and 84,469.38 is: 126,664.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,423.55 : 216,566.95 = 84,469.38 : x
  2. Step 2: Convert to fraction form
    144,423.55/216,566.95 = 84,469.38/x
  3. Step 3: Cross multiply
    144,423.55x = 216,566.95 × 84,469.38
  4. Step 4: Simplify right side
    144,423.55x = 18,293,275,994.99
  5. Step 5: Solve for x
    x = 18,293,275,994.99/144,423.55
  6. Step 6: Final answer
    x = 126,664.08

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