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Finding the Fourth Proportional to 122,456, 183,659.84 and 33,686.72

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Solution

The fourth proportional to 122,456, 183,659.84 and 33,686.72 is: 50,523.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,456 : 183,659.84 = 33,686.72 : x
  2. Step 2: Convert to fraction form
    122,456/183,659.84 = 33,686.72/x
  3. Step 3: Cross multiply
    122,456x = 183,659.84 × 33,686.72
  4. Step 4: Simplify right side
    122,456x = 6,186,897,605.32
  5. Step 5: Solve for x
    x = 6,186,897,605.32/122,456
  6. Step 6: Final answer
    x = 50,523.43

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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.