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Finding the Fourth Proportional to 272,996.70, 409,300.65 and 104,451.90

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Solution

The fourth proportional to 272,996.70, 409,300.65 and 104,451.90 is: 156,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,996.70 : 409,300.65 = 104,451.90 : x
  2. Step 2: Convert to fraction form
    272,996.70/409,300.65 = 104,451.90/x
  3. Step 3: Cross multiply
    272,996.70x = 409,300.65 × 104,451.90
  4. Step 4: Simplify right side
    272,996.70x = 42,752,230,563.74
  5. Step 5: Solve for x
    x = 42,752,230,563.74/272,996.70
  6. Step 6: Final answer
    x = 156,603.47

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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.