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Finding the Fourth Proportional to 122,506.84, 183,514.21 and 55,855.28

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Solution

The fourth proportional to 122,506.84, 183,514.21 and 55,855.28 is: 83,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,506.84 : 183,514.21 = 55,855.28 : x
  2. Step 2: Convert to fraction form
    122,506.84/183,514.21 = 55,855.28/x
  3. Step 3: Cross multiply
    122,506.84x = 183,514.21 × 55,855.28
  4. Step 4: Simplify right side
    122,506.84x = 10,250,237,902.68
  5. Step 5: Solve for x
    x = 10,250,237,902.68/122,506.84
  6. Step 6: Final answer
    x = 83,670.74

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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.