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Finding the Fourth Proportional to 316,514.27, 474,627.81 and 136,514.64

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Solution

The fourth proportional to 316,514.27, 474,627.81 and 136,514.64 is: 204,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,514.27 : 474,627.81 = 136,514.64 : x
  2. Step 2: Convert to fraction form
    316,514.27/474,627.81 = 136,514.64/x
  3. Step 3: Cross multiply
    316,514.27x = 474,627.81 × 136,514.64
  4. Step 4: Simplify right side
    316,514.27x = 64,793,644,616.14
  5. Step 5: Solve for x
    x = 64,793,644,616.14/316,514.27
  6. Step 6: Final answer
    x = 204,710.03

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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.