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Finding the Fourth Proportional to 275,655.30, 413,531.55 and 98,265.30

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Solution

The fourth proportional to 275,655.30, 413,531.55 and 98,265.30 is: 147,415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,655.30 : 413,531.55 = 98,265.30 : x
  2. Step 2: Convert to fraction form
    275,655.30/413,531.55 = 98,265.30/x
  3. Step 3: Cross multiply
    275,655.30x = 413,531.55 × 98,265.30
  4. Step 4: Simplify right side
    275,655.30x = 40,635,801,820.22
  5. Step 5: Solve for x
    x = 40,635,801,820.22/275,655.30
  6. Step 6: Final answer
    x = 147,415.27

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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.