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Finding the Fourth Proportional to 121,056.68, 166,963.68 and 103,210.76

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Solution

The fourth proportional to 121,056.68, 166,963.68 and 103,210.76 is: 142,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,056.68 : 166,963.68 = 103,210.76 : x
  2. Step 2: Convert to fraction form
    121,056.68/166,963.68 = 103,210.76/x
  3. Step 3: Cross multiply
    121,056.68x = 166,963.68 × 103,210.76
  4. Step 4: Simplify right side
    121,056.68x = 17,232,448,305.20
  5. Step 5: Solve for x
    x = 17,232,448,305.20/121,056.68
  6. Step 6: Final answer
    x = 142,350.25

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