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Finding the Fourth Proportional to 85,497.19, 117,985.88 and 47,771.47

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Solution

The fourth proportional to 85,497.19, 117,985.88 and 47,771.47 is: 65,924.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,497.19 : 117,985.88 = 47,771.47 : x
  2. Step 2: Convert to fraction form
    85,497.19/117,985.88 = 47,771.47/x
  3. Step 3: Cross multiply
    85,497.19x = 117,985.88 × 47,771.47
  4. Step 4: Simplify right side
    85,497.19x = 5,636,358,687.99
  5. Step 5: Solve for x
    x = 5,636,358,687.99/85,497.19
  6. Step 6: Final answer
    x = 65,924.49

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