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Finding the Fourth Proportional to 415,570.93, 623,391.76 and 131,185.40

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Solution

The fourth proportional to 415,570.93, 623,391.76 and 131,185.40 is: 196,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,570.93 : 623,391.76 = 131,185.40 : x
  2. Step 2: Convert to fraction form
    415,570.93/623,391.76 = 131,185.40/x
  3. Step 3: Cross multiply
    415,570.93x = 623,391.76 × 131,185.40
  4. Step 4: Simplify right side
    415,570.93x = 81,779,897,392.30
  5. Step 5: Solve for x
    x = 81,779,897,392.30/415,570.93
  6. Step 6: Final answer
    x = 196,789.26

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