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Finding the Fourth Proportional to 118,450.86, 177,532.71 and 86,994.51

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Solution

The fourth proportional to 118,450.86, 177,532.71 and 86,994.51 is: 130,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,450.86 : 177,532.71 = 86,994.51 : x
  2. Step 2: Convert to fraction form
    118,450.86/177,532.71 = 86,994.51/x
  3. Step 3: Cross multiply
    118,450.86x = 177,532.71 × 86,994.51
  4. Step 4: Simplify right side
    118,450.86x = 15,444,371,115.42
  5. Step 5: Solve for x
    x = 15,444,371,115.42/118,450.86
  6. Step 6: Final answer
    x = 130,386.31

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