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Finding the Fourth Proportional to 316,249.80, 436,423.16 and 173,007.24

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Solution

The fourth proportional to 316,249.80, 436,423.16 and 173,007.24 is: 238,749.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,249.80 : 436,423.16 = 173,007.24 : x
  2. Step 2: Convert to fraction form
    316,249.80/436,423.16 = 173,007.24/x
  3. Step 3: Cross multiply
    316,249.80x = 436,423.16 × 173,007.24
  4. Step 4: Simplify right side
    316,249.80x = 75,504,366,383.68
  5. Step 5: Solve for x
    x = 75,504,366,383.68/316,249.80
  6. Step 6: Final answer
    x = 238,749.14

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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.