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Finding the Fourth Proportional to 86,101.32, 129,164.94 and 30,693

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Solution

The fourth proportional to 86,101.32, 129,164.94 and 30,693 is: 46,044.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,101.32 : 129,164.94 = 30,693 : x
  2. Step 2: Convert to fraction form
    86,101.32/129,164.94 = 30,693/x
  3. Step 3: Cross multiply
    86,101.32x = 129,164.94 × 30,693
  4. Step 4: Simplify right side
    86,101.32x = 3,964,459,503.42
  5. Step 5: Solve for x
    x = 3,964,459,503.42/86,101.32
  6. Step 6: Final answer
    x = 46,044.12

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