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Finding the Fourth Proportional to 47,763.84, 71,636.43 and 45,393.03

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Solution

The fourth proportional to 47,763.84, 71,636.43 and 45,393.03 is: 68,080.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,763.84 : 71,636.43 = 45,393.03 : x
  2. Step 2: Convert to fraction form
    47,763.84/71,636.43 = 45,393.03/x
  3. Step 3: Cross multiply
    47,763.84x = 71,636.43 × 45,393.03
  4. Step 4: Simplify right side
    47,763.84x = 3,251,794,616.08
  5. Step 5: Solve for x
    x = 3,251,794,616.08/47,763.84
  6. Step 6: Final answer
    x = 68,080.68

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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.