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Finding the Fourth Proportional to 302,689.52, 453,961.16 and 134,116.64

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Solution

The fourth proportional to 302,689.52, 453,961.16 and 134,116.64 is: 201,142.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,689.52 : 453,961.16 = 134,116.64 : x
  2. Step 2: Convert to fraction form
    302,689.52/453,961.16 = 134,116.64/x
  3. Step 3: Cross multiply
    302,689.52x = 453,961.16 × 134,116.64
  4. Step 4: Simplify right side
    302,689.52x = 60,883,745,469.70
  5. Step 5: Solve for x
    x = 60,883,745,469.70/302,689.52
  6. Step 6: Final answer
    x = 201,142.56

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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.