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Finding the Fourth Proportional to 91,988.01, 137,866.59 and 39,335.58

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Solution

The fourth proportional to 91,988.01, 137,866.59 and 39,335.58 is: 58,954.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,988.01 : 137,866.59 = 39,335.58 : x
  2. Step 2: Convert to fraction form
    91,988.01/137,866.59 = 39,335.58/x
  3. Step 3: Cross multiply
    91,988.01x = 137,866.59 × 39,335.58
  4. Step 4: Simplify right side
    91,988.01x = 5,423,062,280.27
  5. Step 5: Solve for x
    x = 5,423,062,280.27/91,988.01
  6. Step 6: Final answer
    x = 58,954.01

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