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Finding the Fourth Proportional to 70,390.82, 97,159.70 and 40,192.61

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Solution

The fourth proportional to 70,390.82, 97,159.70 and 40,192.61 is: 55,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,390.82 : 97,159.70 = 40,192.61 : x
  2. Step 2: Convert to fraction form
    70,390.82/97,159.70 = 40,192.61/x
  3. Step 3: Cross multiply
    70,390.82x = 97,159.70 × 40,192.61
  4. Step 4: Simplify right side
    70,390.82x = 3,905,101,544.50
  5. Step 5: Solve for x
    x = 3,905,101,544.50/70,390.82
  6. Step 6: Final answer
    x = 55,477.42

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