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Finding the Fourth Proportional to 61,356.98, 84,672.21 and 34,860.98

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Solution

The fourth proportional to 61,356.98, 84,672.21 and 34,860.98 is: 48,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,356.98 : 84,672.21 = 34,860.98 : x
  2. Step 2: Convert to fraction form
    61,356.98/84,672.21 = 34,860.98/x
  3. Step 3: Cross multiply
    61,356.98x = 84,672.21 × 34,860.98
  4. Step 4: Simplify right side
    61,356.98x = 2,951,756,219.37
  5. Step 5: Solve for x
    x = 2,951,756,219.37/61,356.98
  6. Step 6: Final answer
    x = 48,107.91

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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.