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Finding the Fourth Proportional to 391,916.52, 587,827.80 and 122,064.12

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Solution

The fourth proportional to 391,916.52, 587,827.80 and 122,064.12 is: 183,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,916.52 : 587,827.80 = 122,064.12 : x
  2. Step 2: Convert to fraction form
    391,916.52/587,827.80 = 122,064.12/x
  3. Step 3: Cross multiply
    391,916.52x = 587,827.80 × 122,064.12
  4. Step 4: Simplify right side
    391,916.52x = 71,752,683,118.54
  5. Step 5: Solve for x
    x = 71,752,683,118.54/391,916.52
  6. Step 6: Final answer
    x = 183,081.55

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