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Finding the Fourth Proportional to 172,964.97, 259,470.27 and 60,636.60

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Solution

The fourth proportional to 172,964.97, 259,470.27 and 60,636.60 is: 90,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,964.97 : 259,470.27 = 60,636.60 : x
  2. Step 2: Convert to fraction form
    172,964.97/259,470.27 = 60,636.60/x
  3. Step 3: Cross multiply
    172,964.97x = 259,470.27 × 60,636.60
  4. Step 4: Simplify right side
    172,964.97x = 15,733,394,973.88
  5. Step 5: Solve for x
    x = 15,733,394,973.88/172,964.97
  6. Step 6: Final answer
    x = 90,962.90

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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.