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Finding the Fourth Proportional to 83,730.58, 115,554.64 and 47,931.82

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Solution

The fourth proportional to 83,730.58, 115,554.64 and 47,931.82 is: 66,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,730.58 : 115,554.64 = 47,931.82 : x
  2. Step 2: Convert to fraction form
    83,730.58/115,554.64 = 47,931.82/x
  3. Step 3: Cross multiply
    83,730.58x = 115,554.64 × 47,931.82
  4. Step 4: Simplify right side
    83,730.58x = 5,538,744,204.64
  5. Step 5: Solve for x
    x = 5,538,744,204.64/83,730.58
  6. Step 6: Final answer
    x = 66,149.60

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