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Finding the Fourth Proportional to 193,391, 266,884.18 and 108,514.34

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Solution

The fourth proportional to 193,391, 266,884.18 and 108,514.34 is: 149,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,391 : 266,884.18 = 108,514.34 : x
  2. Step 2: Convert to fraction form
    193,391/266,884.18 = 108,514.34/x
  3. Step 3: Cross multiply
    193,391x = 266,884.18 × 108,514.34
  4. Step 4: Simplify right side
    193,391x = 28,960,760,377.86
  5. Step 5: Solve for x
    x = 28,960,760,377.86/193,391
  6. Step 6: Final answer
    x = 149,752.37

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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.