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Finding the Fourth Proportional to 82,829.70, 124,244.55 and 69,999.30

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Solution

The fourth proportional to 82,829.70, 124,244.55 and 69,999.30 is: 104,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,829.70 : 124,244.55 = 69,999.30 : x
  2. Step 2: Convert to fraction form
    82,829.70/124,244.55 = 69,999.30/x
  3. Step 3: Cross multiply
    82,829.70x = 124,244.55 × 69,999.30
  4. Step 4: Simplify right side
    82,829.70x = 8,697,031,528.82
  5. Step 5: Solve for x
    x = 8,697,031,528.82/82,829.70
  6. Step 6: Final answer
    x = 104,998.95

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