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Finding the Fourth Proportional to 316,489.50, 474,850.89 and 166,723.74

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Solution

The fourth proportional to 316,489.50, 474,850.89 and 166,723.74 is: 250,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,489.50 : 474,850.89 = 166,723.74 : x
  2. Step 2: Convert to fraction form
    316,489.50/474,850.89 = 166,723.74/x
  3. Step 3: Cross multiply
    316,489.50x = 474,850.89 × 166,723.74
  4. Step 4: Simplify right side
    316,489.50x = 79,168,916,323.13
  5. Step 5: Solve for x
    x = 79,168,916,323.13/316,489.50
  6. Step 6: Final answer
    x = 250,147.05

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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.