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Finding the Fourth Proportional to 154,045.80, 230,556.70 and 111,805.80

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Solution

The fourth proportional to 154,045.80, 230,556.70 and 111,805.80 is: 167,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,045.80 : 230,556.70 = 111,805.80 : x
  2. Step 2: Convert to fraction form
    154,045.80/230,556.70 = 111,805.80/x
  3. Step 3: Cross multiply
    154,045.80x = 230,556.70 × 111,805.80
  4. Step 4: Simplify right side
    154,045.80x = 25,777,576,288.86
  5. Step 5: Solve for x
    x = 25,777,576,288.86/154,045.80
  6. Step 6: Final answer
    x = 167,337.09

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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.