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Finding the Fourth Proportional to 216,982.40, 325,525.56 and 90,552.32

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Solution

The fourth proportional to 216,982.40, 325,525.56 and 90,552.32 is: 135,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,982.40 : 325,525.56 = 90,552.32 : x
  2. Step 2: Convert to fraction form
    216,982.40/325,525.56 = 90,552.32/x
  3. Step 3: Cross multiply
    216,982.40x = 325,525.56 × 90,552.32
  4. Step 4: Simplify right side
    216,982.40x = 29,477,094,677.30
  5. Step 5: Solve for x
    x = 29,477,094,677.30/216,982.40
  6. Step 6: Final answer
    x = 135,850.16

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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.