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Finding the Fourth Proportional to 483,708.48, 725,579.12 and 128,722.86

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Solution

The fourth proportional to 483,708.48, 725,579.12 and 128,722.86 is: 193,088.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,708.48 : 725,579.12 = 128,722.86 : x
  2. Step 2: Convert to fraction form
    483,708.48/725,579.12 = 128,722.86/x
  3. Step 3: Cross multiply
    483,708.48x = 725,579.12 × 128,722.86
  4. Step 4: Simplify right side
    483,708.48x = 93,398,619,482.68
  5. Step 5: Solve for x
    x = 93,398,619,482.68/483,708.48
  6. Step 6: Final answer
    x = 193,088.65

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