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Finding the Fourth Proportional to 169,991.40, 254,987.10 and 70,118.40

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Solution

The fourth proportional to 169,991.40, 254,987.10 and 70,118.40 is: 105,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,991.40 : 254,987.10 = 70,118.40 : x
  2. Step 2: Convert to fraction form
    169,991.40/254,987.10 = 70,118.40/x
  3. Step 3: Cross multiply
    169,991.40x = 254,987.10 × 70,118.40
  4. Step 4: Simplify right side
    169,991.40x = 17,879,287,472.64
  5. Step 5: Solve for x
    x = 17,879,287,472.64/169,991.40
  6. Step 6: Final answer
    x = 105,177.60

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