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Finding the Fourth Proportional to 75,623.70, 113,435.55 and 69,718.80

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Solution

The fourth proportional to 75,623.70, 113,435.55 and 69,718.80 is: 104,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,623.70 : 113,435.55 = 69,718.80 : x
  2. Step 2: Convert to fraction form
    75,623.70/113,435.55 = 69,718.80/x
  3. Step 3: Cross multiply
    75,623.70x = 113,435.55 × 69,718.80
  4. Step 4: Simplify right side
    75,623.70x = 7,908,590,423.34
  5. Step 5: Solve for x
    x = 7,908,590,423.34/75,623.70
  6. Step 6: Final answer
    x = 104,578.20

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