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Finding the Fourth Proportional to 417,555.88, 626,333.82 and 122,067.88

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Solution

The fourth proportional to 417,555.88, 626,333.82 and 122,067.88 is: 183,101.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,555.88 : 626,333.82 = 122,067.88 : x
  2. Step 2: Convert to fraction form
    417,555.88/626,333.82 = 122,067.88/x
  3. Step 3: Cross multiply
    417,555.88x = 626,333.82 × 122,067.88
  4. Step 4: Simplify right side
    417,555.88x = 76,455,241,579.70
  5. Step 5: Solve for x
    x = 76,455,241,579.70/417,555.88
  6. Step 6: Final answer
    x = 183,101.82

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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.