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Finding the Fourth Proportional to 170,639.60, 255,959.40 and 156,124.40

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Solution

The fourth proportional to 170,639.60, 255,959.40 and 156,124.40 is: 234,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,639.60 : 255,959.40 = 156,124.40 : x
  2. Step 2: Convert to fraction form
    170,639.60/255,959.40 = 156,124.40/x
  3. Step 3: Cross multiply
    170,639.60x = 255,959.40 × 156,124.40
  4. Step 4: Simplify right side
    170,639.60x = 39,961,507,749.36
  5. Step 5: Solve for x
    x = 39,961,507,749.36/170,639.60
  6. Step 6: Final answer
    x = 234,186.60

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