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Finding the Fourth Proportional to 316,661.63, 474,992.31 and 80,004.25

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Solution

The fourth proportional to 316,661.63, 474,992.31 and 80,004.25 is: 120,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,661.63 : 474,992.31 = 80,004.25 : x
  2. Step 2: Convert to fraction form
    316,661.63/474,992.31 = 80,004.25/x
  3. Step 3: Cross multiply
    316,661.63x = 474,992.31 × 80,004.25
  4. Step 4: Simplify right side
    316,661.63x = 38,001,401,142.36
  5. Step 5: Solve for x
    x = 38,001,401,142.36/316,661.63
  6. Step 6: Final answer
    x = 120,006.33

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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.