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Finding the Fourth Proportional to 216,860.37, 325,228.13 and 74,699.90

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Solution

The fourth proportional to 216,860.37, 325,228.13 and 74,699.90 is: 112,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,860.37 : 325,228.13 = 74,699.90 : x
  2. Step 2: Convert to fraction form
    216,860.37/325,228.13 = 74,699.90/x
  3. Step 3: Cross multiply
    216,860.37x = 325,228.13 × 74,699.90
  4. Step 4: Simplify right side
    216,860.37x = 24,294,508,414.69
  5. Step 5: Solve for x
    x = 24,294,508,414.69/216,860.37
  6. Step 6: Final answer
    x = 112,028.35

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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.