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Finding the Fourth Proportional to 84,998.03, 127,497 and 40,489.88

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Solution

The fourth proportional to 84,998.03, 127,497 and 40,489.88 is: 60,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,998.03 : 127,497 = 40,489.88 : x
  2. Step 2: Convert to fraction form
    84,998.03/127,497 = 40,489.88/x
  3. Step 3: Cross multiply
    84,998.03x = 127,497 × 40,489.88
  4. Step 4: Simplify right side
    84,998.03x = 5,162,338,230.36
  5. Step 5: Solve for x
    x = 5,162,338,230.36/84,998.03
  6. Step 6: Final answer
    x = 60,734.80

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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.