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Finding the Fourth Proportional to 200,688.99, 300,822.76 and 67,523.02

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Solution

The fourth proportional to 200,688.99, 300,822.76 and 67,523.02 is: 101,213.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,688.99 : 300,822.76 = 67,523.02 : x
  2. Step 2: Convert to fraction form
    200,688.99/300,822.76 = 67,523.02/x
  3. Step 3: Cross multiply
    200,688.99x = 300,822.76 × 67,523.02
  4. Step 4: Simplify right side
    200,688.99x = 20,312,460,572.28
  5. Step 5: Solve for x
    x = 20,312,460,572.28/200,688.99
  6. Step 6: Final answer
    x = 101,213.63

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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.