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Finding the Fourth Proportional to 78,154.08, 107,852.41 and 42,344.16

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Solution

The fourth proportional to 78,154.08, 107,852.41 and 42,344.16 is: 58,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,154.08 : 107,852.41 = 42,344.16 : x
  2. Step 2: Convert to fraction form
    78,154.08/107,852.41 = 42,344.16/x
  3. Step 3: Cross multiply
    78,154.08x = 107,852.41 × 42,344.16
  4. Step 4: Simplify right side
    78,154.08x = 4,566,919,705.43
  5. Step 5: Solve for x
    x = 4,566,919,705.43/78,154.08
  6. Step 6: Final answer
    x = 58,434.82

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