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Finding the Fourth Proportional to 117,160.28, 161,681.28 and 63,445.36

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Solution

The fourth proportional to 117,160.28, 161,681.28 and 63,445.36 is: 87,554.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,160.28 : 161,681.28 = 63,445.36 : x
  2. Step 2: Convert to fraction form
    117,160.28/161,681.28 = 63,445.36/x
  3. Step 3: Cross multiply
    117,160.28x = 161,681.28 × 63,445.36
  4. Step 4: Simplify right side
    117,160.28x = 10,257,926,372.74
  5. Step 5: Solve for x
    x = 10,257,926,372.74/117,160.28
  6. Step 6: Final answer
    x = 87,554.64

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