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Finding the Fourth Proportional to 281,270.60, 423,412.25 and 252,336.59

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Solution

The fourth proportional to 281,270.60, 423,412.25 and 252,336.59 is: 379,856.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,270.60 : 423,412.25 = 252,336.59 : x
  2. Step 2: Convert to fraction form
    281,270.60/423,412.25 = 252,336.59/x
  3. Step 3: Cross multiply
    281,270.60x = 423,412.25 × 252,336.59
  4. Step 4: Simplify right side
    281,270.60x = 106,842,401,843.01
  5. Step 5: Solve for x
    x = 106,842,401,843.01/281,270.60
  6. Step 6: Final answer
    x = 379,856.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.