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Finding the Fourth Proportional to 153,381.90, 229,994.99 and 115,080.78

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Solution

The fourth proportional to 153,381.90, 229,994.99 and 115,080.78 is: 172,562.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,381.90 : 229,994.99 = 115,080.78 : x
  2. Step 2: Convert to fraction form
    153,381.90/229,994.99 = 115,080.78/x
  3. Step 3: Cross multiply
    153,381.90x = 229,994.99 × 115,080.78
  4. Step 4: Simplify right side
    153,381.90x = 26,468,002,269.89
  5. Step 5: Solve for x
    x = 26,468,002,269.89/153,381.90
  6. Step 6: Final answer
    x = 172,562.75

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