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Finding the Fourth Proportional to 108,559.28, 163,088.40 and 77,047.58

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Solution

The fourth proportional to 108,559.28, 163,088.40 and 77,047.58 is: 115,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,559.28 : 163,088.40 = 77,047.58 : x
  2. Step 2: Convert to fraction form
    108,559.28/163,088.40 = 77,047.58/x
  3. Step 3: Cross multiply
    108,559.28x = 163,088.40 × 77,047.58
  4. Step 4: Simplify right side
    108,559.28x = 12,565,566,546.07
  5. Step 5: Solve for x
    x = 12,565,566,546.07/108,559.28
  6. Step 6: Final answer
    x = 115,748.43

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