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Finding the Fourth Proportional to 103,425.34, 155,119.48 and 27,524.28

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Solution

The fourth proportional to 103,425.34, 155,119.48 and 27,524.28 is: 41,281.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,425.34 : 155,119.48 = 27,524.28 : x
  2. Step 2: Convert to fraction form
    103,425.34/155,119.48 = 27,524.28/x
  3. Step 3: Cross multiply
    103,425.34x = 155,119.48 × 27,524.28
  4. Step 4: Simplify right side
    103,425.34x = 4,269,552,000.97
  5. Step 5: Solve for x
    x = 4,269,552,000.97/103,425.34
  6. Step 6: Final answer
    x = 41,281.49

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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.