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Finding the Fourth Proportional to 275,774.61, 413,612.68 and 73,371.88

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Solution

The fourth proportional to 275,774.61, 413,612.68 and 73,371.88 is: 110,044.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,774.61 : 413,612.68 = 73,371.88 : x
  2. Step 2: Convert to fraction form
    275,774.61/413,612.68 = 73,371.88/x
  3. Step 3: Cross multiply
    275,774.61x = 413,612.68 × 73,371.88
  4. Step 4: Simplify right side
    275,774.61x = 30,347,539,740.01
  5. Step 5: Solve for x
    x = 30,347,539,740.01/275,774.61
  6. Step 6: Final answer
    x = 110,044.72

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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.