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Finding the Fourth Proportional to 216,898.80, 325,194.60 and 83,727.60

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Solution

The fourth proportional to 216,898.80, 325,194.60 and 83,727.60 is: 125,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,898.80 : 325,194.60 = 83,727.60 : x
  2. Step 2: Convert to fraction form
    216,898.80/325,194.60 = 83,727.60/x
  3. Step 3: Cross multiply
    216,898.80x = 325,194.60 × 83,727.60
  4. Step 4: Simplify right side
    216,898.80x = 27,227,763,390.96
  5. Step 5: Solve for x
    x = 27,227,763,390.96/216,898.80
  6. Step 6: Final answer
    x = 125,532.11

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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.