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Finding the Fourth Proportional to 331,405.80, 497,181.60 and 106,776.60

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Solution

The fourth proportional to 331,405.80, 497,181.60 and 106,776.60 is: 160,188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,405.80 : 497,181.60 = 106,776.60 : x
  2. Step 2: Convert to fraction form
    331,405.80/497,181.60 = 106,776.60/x
  3. Step 3: Cross multiply
    331,405.80x = 497,181.60 × 106,776.60
  4. Step 4: Simplify right side
    331,405.80x = 53,087,360,830.56
  5. Step 5: Solve for x
    x = 53,087,360,830.56/331,405.80
  6. Step 6: Final answer
    x = 160,188.39

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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.