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Finding the Fourth Proportional to 91,706.90, 126,578.03 and 55,916.64

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Solution

The fourth proportional to 91,706.90, 126,578.03 and 55,916.64 is: 77,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,706.90 : 126,578.03 = 55,916.64 : x
  2. Step 2: Convert to fraction form
    91,706.90/126,578.03 = 55,916.64/x
  3. Step 3: Cross multiply
    91,706.90x = 126,578.03 × 55,916.64
  4. Step 4: Simplify right side
    91,706.90x = 7,077,817,855.84
  5. Step 5: Solve for x
    x = 7,077,817,855.84/91,706.90
  6. Step 6: Final answer
    x = 77,178.69

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