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Finding the Fourth Proportional to 78,105.04, 107,784.93 and 42,295.04

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Solution

The fourth proportional to 78,105.04, 107,784.93 and 42,295.04 is: 58,367.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,105.04 : 107,784.93 = 42,295.04 : x
  2. Step 2: Convert to fraction form
    78,105.04/107,784.93 = 42,295.04/x
  3. Step 3: Cross multiply
    78,105.04x = 107,784.93 × 42,295.04
  4. Step 4: Simplify right side
    78,105.04x = 4,558,767,632.41
  5. Step 5: Solve for x
    x = 4,558,767,632.41/78,105.04
  6. Step 6: Final answer
    x = 58,367.14

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