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Finding the Fourth Proportional to 122,185.80, 183,221.18 and 47,341

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Solution

The fourth proportional to 122,185.80, 183,221.18 and 47,341 is: 70,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,185.80 : 183,221.18 = 47,341 : x
  2. Step 2: Convert to fraction form
    122,185.80/183,221.18 = 47,341/x
  3. Step 3: Cross multiply
    122,185.80x = 183,221.18 × 47,341
  4. Step 4: Simplify right side
    122,185.80x = 8,673,873,882.38
  5. Step 5: Solve for x
    x = 8,673,873,882.38/122,185.80
  6. Step 6: Final answer
    x = 70,989.21

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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.