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Finding the Fourth Proportional to 78,547.37, 108,395.82 and 42,737.63

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Solution

The fourth proportional to 78,547.37, 108,395.82 and 42,737.63 is: 58,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,547.37 : 108,395.82 = 42,737.63 : x
  2. Step 2: Convert to fraction form
    78,547.37/108,395.82 = 42,737.63/x
  3. Step 3: Cross multiply
    78,547.37x = 108,395.82 × 42,737.63
  4. Step 4: Simplify right side
    78,547.37x = 4,632,579,906.73
  5. Step 5: Solve for x
    x = 4,632,579,906.73/78,547.37
  6. Step 6: Final answer
    x = 58,978.17

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