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Finding the Fourth Proportional to 74,131.64, 102,300.20 and 42,295.40

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Solution

The fourth proportional to 74,131.64, 102,300.20 and 42,295.40 is: 58,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,131.64 : 102,300.20 = 42,295.40 : x
  2. Step 2: Convert to fraction form
    74,131.64/102,300.20 = 42,295.40/x
  3. Step 3: Cross multiply
    74,131.64x = 102,300.20 × 42,295.40
  4. Step 4: Simplify right side
    74,131.64x = 4,326,827,879.08
  5. Step 5: Solve for x
    x = 4,326,827,879.08/74,131.64
  6. Step 6: Final answer
    x = 58,366.82

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