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Finding the Fourth Proportional to 85,725.52, 118,300.42 and 48,000.40

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Solution

The fourth proportional to 85,725.52, 118,300.42 and 48,000.40 is: 66,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.52 : 118,300.42 = 48,000.40 : x
  2. Step 2: Convert to fraction form
    85,725.52/118,300.42 = 48,000.40/x
  3. Step 3: Cross multiply
    85,725.52x = 118,300.42 × 48,000.40
  4. Step 4: Simplify right side
    85,725.52x = 5,678,467,480.17
  5. Step 5: Solve for x
    x = 5,678,467,480.17/85,725.52
  6. Step 6: Final answer
    x = 66,240.11

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