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Finding the Fourth Proportional to 114,760.40, 172,140.60 and 83,656.40

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Solution

The fourth proportional to 114,760.40, 172,140.60 and 83,656.40 is: 125,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,760.40 : 172,140.60 = 83,656.40 : x
  2. Step 2: Convert to fraction form
    114,760.40/172,140.60 = 83,656.40/x
  3. Step 3: Cross multiply
    114,760.40x = 172,140.60 × 83,656.40
  4. Step 4: Simplify right side
    114,760.40x = 14,400,662,889.84
  5. Step 5: Solve for x
    x = 14,400,662,889.84/114,760.40
  6. Step 6: Final answer
    x = 125,484.60

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