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Finding the Fourth Proportional to 301,093.42, 415,470.49 and 172,040.25

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Solution

The fourth proportional to 301,093.42, 415,470.49 and 172,040.25 is: 237,393.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,093.42 : 415,470.49 = 172,040.25 : x
  2. Step 2: Convert to fraction form
    301,093.42/415,470.49 = 172,040.25/x
  3. Step 3: Cross multiply
    301,093.42x = 415,470.49 × 172,040.25
  4. Step 4: Simplify right side
    301,093.42x = 71,477,646,107.02
  5. Step 5: Solve for x
    x = 71,477,646,107.02/301,093.42
  6. Step 6: Final answer
    x = 237,393.59

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1.5x scale

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.