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Finding the Fourth Proportional to 74,196, 102,390.48 and 40,661.28

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Solution

The fourth proportional to 74,196, 102,390.48 and 40,661.28 is: 56,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,196 : 102,390.48 = 40,661.28 : x
  2. Step 2: Convert to fraction form
    74,196/102,390.48 = 40,661.28/x
  3. Step 3: Cross multiply
    74,196x = 102,390.48 × 40,661.28
  4. Step 4: Simplify right side
    74,196x = 4,163,327,976.61
  5. Step 5: Solve for x
    x = 4,163,327,976.61/74,196
  6. Step 6: Final answer
    x = 56,112.57

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