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Finding the Fourth Proportional to 216,810.48, 325,134.90 and 74,616.03

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Solution

The fourth proportional to 216,810.48, 325,134.90 and 74,616.03 is: 111,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,810.48 : 325,134.90 = 74,616.03 : x
  2. Step 2: Convert to fraction form
    216,810.48/325,134.90 = 74,616.03/x
  3. Step 3: Cross multiply
    216,810.48x = 325,134.90 × 74,616.03
  4. Step 4: Simplify right side
    216,810.48x = 24,260,275,452.45
  5. Step 5: Solve for x
    x = 24,260,275,452.45/216,810.48
  6. Step 6: Final answer
    x = 111,896.23

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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.