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Finding the Fourth Proportional to 235,455.60, 353,183.40 and 57,961.20

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Solution

The fourth proportional to 235,455.60, 353,183.40 and 57,961.20 is: 86,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,455.60 : 353,183.40 = 57,961.20 : x
  2. Step 2: Convert to fraction form
    235,455.60/353,183.40 = 57,961.20/x
  3. Step 3: Cross multiply
    235,455.60x = 353,183.40 × 57,961.20
  4. Step 4: Simplify right side
    235,455.60x = 20,470,933,684.08
  5. Step 5: Solve for x
    x = 20,470,933,684.08/235,455.60
  6. Step 6: Final answer
    x = 86,941.80

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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.