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Finding the Fourth Proportional to 483,707.48, 725,577.62 and 128,721.86

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Solution

The fourth proportional to 483,707.48, 725,577.62 and 128,721.86 is: 193,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,707.48 : 725,577.62 = 128,721.86 : x
  2. Step 2: Convert to fraction form
    483,707.48/725,577.62 = 128,721.86/x
  3. Step 3: Cross multiply
    483,707.48x = 725,577.62 × 128,721.86
  4. Step 4: Simplify right side
    483,707.48x = 93,397,700,820.77
  5. Step 5: Solve for x
    x = 93,397,700,820.77/483,707.48
  6. Step 6: Final answer
    x = 193,087.15

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