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Finding the Fourth Proportional to 216,136.44, 323,982.96 and 82,980.84

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Solution

The fourth proportional to 216,136.44, 323,982.96 and 82,980.84 is: 124,386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,136.44 : 323,982.96 = 82,980.84 : x
  2. Step 2: Convert to fraction form
    216,136.44/323,982.96 = 82,980.84/x
  3. Step 3: Cross multiply
    216,136.44x = 323,982.96 × 82,980.84
  4. Step 4: Simplify right side
    216,136.44x = 26,884,378,166.49
  5. Step 5: Solve for x
    x = 26,884,378,166.49/216,136.44
  6. Step 6: Final answer
    x = 124,386.14

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1.5x scale

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.