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Finding the Fourth Proportional to 200,045.20, 299,722.20 and 168,941.20

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Solution

The fourth proportional to 200,045.20, 299,722.20 and 168,941.20 is: 253,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,045.20 : 299,722.20 = 168,941.20 : x
  2. Step 2: Convert to fraction form
    200,045.20/299,722.20 = 168,941.20/x
  3. Step 3: Cross multiply
    200,045.20x = 299,722.20 × 168,941.20
  4. Step 4: Simplify right side
    200,045.20x = 50,635,428,134.64
  5. Step 5: Solve for x
    x = 50,635,428,134.64/200,045.20
  6. Step 6: Final answer
    x = 253,119.94

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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.