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Finding the Fourth Proportional to 92,681.10, 139,021.65 and 55,283.40

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Solution

The fourth proportional to 92,681.10, 139,021.65 and 55,283.40 is: 82,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,681.10 : 139,021.65 = 55,283.40 : x
  2. Step 2: Convert to fraction form
    92,681.10/139,021.65 = 55,283.40/x
  3. Step 3: Cross multiply
    92,681.10x = 139,021.65 × 55,283.40
  4. Step 4: Simplify right side
    92,681.10x = 7,685,589,485.61
  5. Step 5: Solve for x
    x = 7,685,589,485.61/92,681.10
  6. Step 6: Final answer
    x = 82,925.10

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