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Finding the Fourth Proportional to 499,288.76, 748,777.62 and 166,787

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Solution

The fourth proportional to 499,288.76, 748,777.62 and 166,787 is: 250,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,288.76 : 748,777.62 = 166,787 : x
  2. Step 2: Convert to fraction form
    499,288.76/748,777.62 = 166,787/x
  3. Step 3: Cross multiply
    499,288.76x = 748,777.62 × 166,787
  4. Step 4: Simplify right side
    499,288.76x = 124,886,372,906.94
  5. Step 5: Solve for x
    x = 124,886,372,906.94/499,288.76
  6. Step 6: Final answer
    x = 250,128.55

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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.