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Finding the Fourth Proportional to 75,702.60, 113,553.90 and 70,000.20

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Solution

The fourth proportional to 75,702.60, 113,553.90 and 70,000.20 is: 105,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,702.60 : 113,553.90 = 70,000.20 : x
  2. Step 2: Convert to fraction form
    75,702.60/113,553.90 = 70,000.20/x
  3. Step 3: Cross multiply
    75,702.60x = 113,553.90 × 70,000.20
  4. Step 4: Simplify right side
    75,702.60x = 7,948,795,710.78
  5. Step 5: Solve for x
    x = 7,948,795,710.78/75,702.60
  6. Step 6: Final answer
    x = 105,000.30

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