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Finding the Fourth Proportional to 476,841.09, 715,261.97 and 121,855.44

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Solution

The fourth proportional to 476,841.09, 715,261.97 and 121,855.44 is: 182,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,841.09 : 715,261.97 = 121,855.44 : x
  2. Step 2: Convert to fraction form
    476,841.09/715,261.97 = 121,855.44/x
  3. Step 3: Cross multiply
    476,841.09x = 715,261.97 × 121,855.44
  4. Step 4: Simplify right side
    476,841.09x = 87,158,561,460.34
  5. Step 5: Solve for x
    x = 87,158,561,460.34/476,841.09
  6. Step 6: Final answer
    x = 182,783.24

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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.