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Finding the Fourth Proportional to 335,207.80, 502,155.60 and 201,691.45

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Solution

The fourth proportional to 335,207.80, 502,155.60 and 201,691.45 is: 302,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,207.80 : 502,155.60 = 201,691.45 : x
  2. Step 2: Convert to fraction form
    335,207.80/502,155.60 = 201,691.45/x
  3. Step 3: Cross multiply
    335,207.80x = 502,155.60 × 201,691.45
  4. Step 4: Simplify right side
    335,207.80x = 101,280,491,089.62
  5. Step 5: Solve for x
    x = 101,280,491,089.62/335,207.80
  6. Step 6: Final answer
    x = 302,142.41

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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.