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Finding the Fourth Proportional to 56,603.21, 84,890.23 and 17,149.73

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Solution

The fourth proportional to 56,603.21, 84,890.23 and 17,149.73 is: 25,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.21 : 84,890.23 = 17,149.73 : x
  2. Step 2: Convert to fraction form
    56,603.21/84,890.23 = 17,149.73/x
  3. Step 3: Cross multiply
    56,603.21x = 84,890.23 × 17,149.73
  4. Step 4: Simplify right side
    56,603.21x = 1,455,844,056.81
  5. Step 5: Solve for x
    x = 1,455,844,056.81/56,603.21
  6. Step 6: Final answer
    x = 25,720.17

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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.