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Finding the Fourth Proportional to 216,257.46, 324,455.58 and 103,945.81

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Solution

The fourth proportional to 216,257.46, 324,455.58 and 103,945.81 is: 155,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,257.46 : 324,455.58 = 103,945.81 : x
  2. Step 2: Convert to fraction form
    216,257.46/324,455.58 = 103,945.81/x
  3. Step 3: Cross multiply
    216,257.46x = 324,455.58 × 103,945.81
  4. Step 4: Simplify right side
    216,257.46x = 33,725,798,072.12
  5. Step 5: Solve for x
    x = 33,725,798,072.12/216,257.46
  6. Step 6: Final answer
    x = 155,952.07

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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.