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Finding the Fourth Proportional to 104,327.98, 143,959.41 and 61,878.22

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Solution

The fourth proportional to 104,327.98, 143,959.41 and 61,878.22 is: 85,384.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,327.98 : 143,959.41 = 61,878.22 : x
  2. Step 2: Convert to fraction form
    104,327.98/143,959.41 = 61,878.22/x
  3. Step 3: Cross multiply
    104,327.98x = 143,959.41 × 61,878.22
  4. Step 4: Simplify right side
    104,327.98x = 8,907,952,043.05
  5. Step 5: Solve for x
    x = 8,907,952,043.05/104,327.98
  6. Step 6: Final answer
    x = 85,384.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.