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Finding the Fourth Proportional to 235,765.15, 353,647.83 and 77,993.60

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Solution

The fourth proportional to 235,765.15, 353,647.83 and 77,993.60 is: 116,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,765.15 : 353,647.83 = 77,993.60 : x
  2. Step 2: Convert to fraction form
    235,765.15/353,647.83 = 77,993.60/x
  3. Step 3: Cross multiply
    235,765.15x = 353,647.83 × 77,993.60
  4. Step 4: Simplify right side
    235,765.15x = 27,582,267,393.89
  5. Step 5: Solve for x
    x = 27,582,267,393.89/235,765.15
  6. Step 6: Final answer
    x = 116,990.44

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1.5x scale

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.