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Finding the Fourth Proportional to 115,722.40, 173,713.20 and 89,543.20

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Solution

The fourth proportional to 115,722.40, 173,713.20 and 89,543.20 is: 134,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,722.40 : 173,713.20 = 89,543.20 : x
  2. Step 2: Convert to fraction form
    115,722.40/173,713.20 = 89,543.20/x
  3. Step 3: Cross multiply
    115,722.40x = 173,713.20 × 89,543.20
  4. Step 4: Simplify right side
    115,722.40x = 15,554,835,810.24
  5. Step 5: Solve for x
    x = 15,554,835,810.24/115,722.40
  6. Step 6: Final answer
    x = 134,415.08

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