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Finding the Fourth Proportional to 78,136.01, 107,827.69 and 42,326.01

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Solution

The fourth proportional to 78,136.01, 107,827.69 and 42,326.01 is: 58,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,136.01 : 107,827.69 = 42,326.01 : x
  2. Step 2: Convert to fraction form
    78,136.01/107,827.69 = 42,326.01/x
  3. Step 3: Cross multiply
    78,136.01x = 107,827.69 × 42,326.01
  4. Step 4: Simplify right side
    78,136.01x = 4,563,916,342.48
  5. Step 5: Solve for x
    x = 4,563,916,342.48/78,136.01
  6. Step 6: Final answer
    x = 58,409.90

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