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Finding the Fourth Proportional to 85,104.32, 117,457.99 and 64,923.10

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Solution

The fourth proportional to 85,104.32, 117,457.99 and 64,923.10 is: 89,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,104.32 : 117,457.99 = 64,923.10 : x
  2. Step 2: Convert to fraction form
    85,104.32/117,457.99 = 64,923.10/x
  3. Step 3: Cross multiply
    85,104.32x = 117,457.99 × 64,923.10
  4. Step 4: Simplify right side
    85,104.32x = 7,625,736,830.57
  5. Step 5: Solve for x
    x = 7,625,736,830.57/85,104.32
  6. Step 6: Final answer
    x = 89,604.58

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