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Finding the Fourth Proportional to 53,503.21, 80,185.06 and 29,809.80

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Solution

The fourth proportional to 53,503.21, 80,185.06 and 29,809.80 is: 44,675.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,503.21 : 80,185.06 = 29,809.80 : x
  2. Step 2: Convert to fraction form
    53,503.21/80,185.06 = 29,809.80/x
  3. Step 3: Cross multiply
    53,503.21x = 80,185.06 × 29,809.80
  4. Step 4: Simplify right side
    53,503.21x = 2,390,300,497.17
  5. Step 5: Solve for x
    x = 2,390,300,497.17/53,503.21
  6. Step 6: Final answer
    x = 44,675.83

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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.