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Finding the Fourth Proportional to 166,989.67, 230,420.70 and 95,354.48

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Solution

The fourth proportional to 166,989.67, 230,420.70 and 95,354.48 is: 131,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,989.67 : 230,420.70 = 95,354.48 : x
  2. Step 2: Convert to fraction form
    166,989.67/230,420.70 = 95,354.48/x
  3. Step 3: Cross multiply
    166,989.67x = 230,420.70 × 95,354.48
  4. Step 4: Simplify right side
    166,989.67x = 21,971,646,605.79
  5. Step 5: Solve for x
    x = 21,971,646,605.79/166,989.67
  6. Step 6: Final answer
    x = 131,574.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.