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Finding the Fourth Proportional to 56,205.84, 84,308.64 and 16,761.96

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Solution

The fourth proportional to 56,205.84, 84,308.64 and 16,761.96 is: 25,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,205.84 : 84,308.64 = 16,761.96 : x
  2. Step 2: Convert to fraction form
    56,205.84/84,308.64 = 16,761.96/x
  3. Step 3: Cross multiply
    56,205.84x = 84,308.64 × 16,761.96
  4. Step 4: Simplify right side
    56,205.84x = 1,413,178,051.33
  5. Step 5: Solve for x
    x = 1,413,178,051.33/56,205.84
  6. Step 6: Final answer
    x = 25,142.90

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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.