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Finding the Fourth Proportional to 510,440.22, 765,660.33 and 136,453.50

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Solution

The fourth proportional to 510,440.22, 765,660.33 and 136,453.50 is: 204,680.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,440.22 : 765,660.33 = 136,453.50 : x
  2. Step 2: Convert to fraction form
    510,440.22/765,660.33 = 136,453.50/x
  3. Step 3: Cross multiply
    510,440.22x = 765,660.33 × 136,453.50
  4. Step 4: Simplify right side
    510,440.22x = 104,477,031,839.66
  5. Step 5: Solve for x
    x = 104,477,031,839.66/510,440.22
  6. Step 6: Final answer
    x = 204,680.25

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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.