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Finding the Fourth Proportional to 78,931.80, 118,460.68 and 41,513.85

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Solution

The fourth proportional to 78,931.80, 118,460.68 and 41,513.85 is: 62,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,931.80 : 118,460.68 = 41,513.85 : x
  2. Step 2: Convert to fraction form
    78,931.80/118,460.68 = 41,513.85/x
  3. Step 3: Cross multiply
    78,931.80x = 118,460.68 × 41,513.85
  4. Step 4: Simplify right side
    78,931.80x = 4,917,758,796.63
  5. Step 5: Solve for x
    x = 4,917,758,796.63/78,931.80
  6. Step 6: Final answer
    x = 62,303.90

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