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Finding the Fourth Proportional to 353,086.60, 529,629.90 and 100,366.60

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Solution

The fourth proportional to 353,086.60, 529,629.90 and 100,366.60 is: 150,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,086.60 : 529,629.90 = 100,366.60 : x
  2. Step 2: Convert to fraction form
    353,086.60/529,629.90 = 100,366.60/x
  3. Step 3: Cross multiply
    353,086.60x = 529,629.90 × 100,366.60
  4. Step 4: Simplify right side
    353,086.60x = 53,157,152,321.34
  5. Step 5: Solve for x
    x = 53,157,152,321.34/353,086.60
  6. Step 6: Final answer
    x = 150,549.90

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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.