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Finding the Fourth Proportional to 339,018.06, 508,514.76 and 102,354.54

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Solution

The fourth proportional to 339,018.06, 508,514.76 and 102,354.54 is: 153,528.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,018.06 : 508,514.76 = 102,354.54 : x
  2. Step 2: Convert to fraction form
    339,018.06/508,514.76 = 102,354.54/x
  3. Step 3: Cross multiply
    339,018.06x = 508,514.76 × 102,354.54
  4. Step 4: Simplify right side
    339,018.06x = 52,048,794,343.01
  5. Step 5: Solve for x
    x = 52,048,794,343.01/339,018.06
  6. Step 6: Final answer
    x = 153,528.09

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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.