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Finding the Fourth Proportional to 117,230.40, 175,845.60 and 72,993.60

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Solution

The fourth proportional to 117,230.40, 175,845.60 and 72,993.60 is: 109,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,230.40 : 175,845.60 = 72,993.60 : x
  2. Step 2: Convert to fraction form
    117,230.40/175,845.60 = 72,993.60/x
  3. Step 3: Cross multiply
    117,230.40x = 175,845.60 × 72,993.60
  4. Step 4: Simplify right side
    117,230.40x = 12,835,603,388.16
  5. Step 5: Solve for x
    x = 12,835,603,388.16/117,230.40
  6. Step 6: Final answer
    x = 109,490.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.