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Finding the Fourth Proportional to 216,664.02, 325,003.19 and 74,507.87

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Solution

The fourth proportional to 216,664.02, 325,003.19 and 74,507.87 is: 111,764.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,664.02 : 325,003.19 = 74,507.87 : x
  2. Step 2: Convert to fraction form
    216,664.02/325,003.19 = 74,507.87/x
  3. Step 3: Cross multiply
    216,664.02x = 325,003.19 × 74,507.87
  4. Step 4: Simplify right side
    216,664.02x = 24,215,295,870.07
  5. Step 5: Solve for x
    x = 24,215,295,870.07/216,664.02
  6. Step 6: Final answer
    x = 111,764.27

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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.