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Finding the Fourth Proportional to 154,030.61, 212,554.62 and 86,034.04

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Solution

The fourth proportional to 154,030.61, 212,554.62 and 86,034.04 is: 118,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,030.61 : 212,554.62 = 86,034.04 : x
  2. Step 2: Convert to fraction form
    154,030.61/212,554.62 = 86,034.04/x
  3. Step 3: Cross multiply
    154,030.61x = 212,554.62 × 86,034.04
  4. Step 4: Simplify right side
    154,030.61x = 18,286,932,147.88
  5. Step 5: Solve for x
    x = 18,286,932,147.88/154,030.61
  6. Step 6: Final answer
    x = 118,722.71

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