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Finding the Fourth Proportional to 103,592.40, 155,388.60 and 77,348.40

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Solution

The fourth proportional to 103,592.40, 155,388.60 and 77,348.40 is: 116,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,592.40 : 155,388.60 = 77,348.40 : x
  2. Step 2: Convert to fraction form
    103,592.40/155,388.60 = 77,348.40/x
  3. Step 3: Cross multiply
    103,592.40x = 155,388.60 × 77,348.40
  4. Step 4: Simplify right side
    103,592.40x = 12,019,059,588.24
  5. Step 5: Solve for x
    x = 12,019,059,588.24/103,592.40
  6. Step 6: Final answer
    x = 116,022.60

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