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Finding the Fourth Proportional to 111,211.65, 166,818.29 and 88,996.59

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Solution

The fourth proportional to 111,211.65, 166,818.29 and 88,996.59 is: 133,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211.65 : 166,818.29 = 88,996.59 : x
  2. Step 2: Convert to fraction form
    111,211.65/166,818.29 = 88,996.59/x
  3. Step 3: Cross multiply
    111,211.65x = 166,818.29 × 88,996.59
  4. Step 4: Simplify right side
    111,211.65x = 14,846,258,514.65
  5. Step 5: Solve for x
    x = 14,846,258,514.65/111,211.65
  6. Step 6: Final answer
    x = 133,495.53

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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.