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Finding the Fourth Proportional to 216,982.51, 325,525.70 and 90,552.44

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Solution

The fourth proportional to 216,982.51, 325,525.70 and 90,552.44 is: 135,850.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,982.51 : 325,525.70 = 90,552.44 : x
  2. Step 2: Convert to fraction form
    216,982.51/325,525.70 = 90,552.44/x
  3. Step 3: Cross multiply
    216,982.51x = 325,525.70 × 90,552.44
  4. Step 4: Simplify right side
    216,982.51x = 29,477,147,457.90
  5. Step 5: Solve for x
    x = 29,477,147,457.90/216,982.51
  6. Step 6: Final answer
    x = 135,850.34

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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.