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Finding the Fourth Proportional to 103,613, 155,445.60 and 29,741

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Solution

The fourth proportional to 103,613, 155,445.60 and 29,741 is: 44,618.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,613 : 155,445.60 = 29,741 : x
  2. Step 2: Convert to fraction form
    103,613/155,445.60 = 29,741/x
  3. Step 3: Cross multiply
    103,613x = 155,445.60 × 29,741
  4. Step 4: Simplify right side
    103,613x = 4,623,107,589.60
  5. Step 5: Solve for x
    x = 4,623,107,589.60/103,613
  6. Step 6: Final answer
    x = 44,618.99

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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.