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Finding the Fourth Proportional to 216,750.50, 325,153.46 and 83,668.82

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Solution

The fourth proportional to 216,750.50, 325,153.46 and 83,668.82 is: 125,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,750.50 : 325,153.46 = 83,668.82 : x
  2. Step 2: Convert to fraction form
    216,750.50/325,153.46 = 83,668.82/x
  3. Step 3: Cross multiply
    216,750.50x = 325,153.46 × 83,668.82
  4. Step 4: Simplify right side
    216,750.50x = 27,205,206,317.12
  5. Step 5: Solve for x
    x = 27,205,206,317.12/216,750.50
  6. Step 6: Final answer
    x = 125,513.93

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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.