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Finding the Fourth Proportional to 275,847.30, 413,819.55 and 98,457.30

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Solution

The fourth proportional to 275,847.30, 413,819.55 and 98,457.30 is: 147,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,847.30 : 413,819.55 = 98,457.30 : x
  2. Step 2: Convert to fraction form
    275,847.30/413,819.55 = 98,457.30/x
  3. Step 3: Cross multiply
    275,847.30x = 413,819.55 × 98,457.30
  4. Step 4: Simplify right side
    275,847.30x = 40,743,555,580.22
  5. Step 5: Solve for x
    x = 40,743,555,580.22/275,847.30
  6. Step 6: Final answer
    x = 147,703.30

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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.