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Finding the Fourth Proportional to 116,396.40, 160,647.96 and 68,646.96

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Solution

The fourth proportional to 116,396.40, 160,647.96 and 68,646.96 is: 94,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,396.40 : 160,647.96 = 68,646.96 : x
  2. Step 2: Convert to fraction form
    116,396.40/160,647.96 = 68,646.96/x
  3. Step 3: Cross multiply
    116,396.40x = 160,647.96 × 68,646.96
  4. Step 4: Simplify right side
    116,396.40x = 11,027,994,084.20
  5. Step 5: Solve for x
    x = 11,027,994,084.20/116,396.40
  6. Step 6: Final answer
    x = 94,745.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.