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Finding the Fourth Proportional to 99,677.25, 137,554.61 and 54,965.25

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Solution

The fourth proportional to 99,677.25, 137,554.61 and 54,965.25 is: 75,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,677.25 : 137,554.61 = 54,965.25 : x
  2. Step 2: Convert to fraction form
    99,677.25/137,554.61 = 54,965.25/x
  3. Step 3: Cross multiply
    99,677.25x = 137,554.61 × 54,965.25
  4. Step 4: Simplify right side
    99,677.25x = 7,560,723,252.48
  5. Step 5: Solve for x
    x = 7,560,723,252.48/99,677.25
  6. Step 6: Final answer
    x = 75,852.05

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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.