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Finding the Fourth Proportional to 121,681.62, 168,036.06 and 115,054.98

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Solution

The fourth proportional to 121,681.62, 168,036.06 and 115,054.98 is: 158,885.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,681.62 : 168,036.06 = 115,054.98 : x
  2. Step 2: Convert to fraction form
    121,681.62/168,036.06 = 115,054.98/x
  3. Step 3: Cross multiply
    121,681.62x = 168,036.06 × 115,054.98
  4. Step 4: Simplify right side
    121,681.62x = 19,333,385,522.58
  5. Step 5: Solve for x
    x = 19,333,385,522.58/121,681.62
  6. Step 6: Final answer
    x = 158,885.01

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