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Finding the Fourth Proportional to 200,095.30, 300,033.60 and 81,632.80

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Solution

The fourth proportional to 200,095.30, 300,033.60 and 81,632.80 is: 122,404.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,095.30 : 300,033.60 = 81,632.80 : x
  2. Step 2: Convert to fraction form
    200,095.30/300,033.60 = 81,632.80/x
  3. Step 3: Cross multiply
    200,095.30x = 300,033.60 × 81,632.80
  4. Step 4: Simplify right side
    200,095.30x = 24,492,582,862.08
  5. Step 5: Solve for x
    x = 24,492,582,862.08/200,095.30
  6. Step 6: Final answer
    x = 122,404.59

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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.