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Finding the Fourth Proportional to 61,232.98, 91,852.89 and 19,118.88

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Solution

The fourth proportional to 61,232.98, 91,852.89 and 19,118.88 is: 28,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,232.98 : 91,852.89 = 19,118.88 : x
  2. Step 2: Convert to fraction form
    61,232.98/91,852.89 = 19,118.88/x
  3. Step 3: Cross multiply
    61,232.98x = 91,852.89 × 19,118.88
  4. Step 4: Simplify right side
    61,232.98x = 1,756,123,922.30
  5. Step 5: Solve for x
    x = 1,756,123,922.30/61,232.98
  6. Step 6: Final answer
    x = 28,679.38

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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.