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Finding the Fourth Proportional to 153,218.94, 230,043.72 and 78,392.76

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Solution

The fourth proportional to 153,218.94, 230,043.72 and 78,392.76 is: 117,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,218.94 : 230,043.72 = 78,392.76 : x
  2. Step 2: Convert to fraction form
    153,218.94/230,043.72 = 78,392.76/x
  3. Step 3: Cross multiply
    153,218.94x = 230,043.72 × 78,392.76
  4. Step 4: Simplify right side
    153,218.94x = 18,033,762,131.47
  5. Step 5: Solve for x
    x = 18,033,762,131.47/153,218.94
  6. Step 6: Final answer
    x = 117,699.30

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