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Finding the Fourth Proportional to 317,418.89, 476,164.47 and 115,110.32

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Solution

The fourth proportional to 317,418.89, 476,164.47 and 115,110.32 is: 172,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,418.89 : 476,164.47 = 115,110.32 : x
  2. Step 2: Convert to fraction form
    317,418.89/476,164.47 = 115,110.32/x
  3. Step 3: Cross multiply
    317,418.89x = 476,164.47 × 115,110.32
  4. Step 4: Simplify right side
    317,418.89x = 54,811,444,514.33
  5. Step 5: Solve for x
    x = 54,811,444,514.33/317,418.89
  6. Step 6: Final answer
    x = 172,678.58

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1.5x scale

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.