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Finding the Fourth Proportional to 334,434.70, 501,668.46 and 134,728

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Solution

The fourth proportional to 334,434.70, 501,668.46 and 134,728 is: 202,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,434.70 : 501,668.46 = 134,728 : x
  2. Step 2: Convert to fraction form
    334,434.70/501,668.46 = 134,728/x
  3. Step 3: Cross multiply
    334,434.70x = 501,668.46 × 134,728
  4. Step 4: Simplify right side
    334,434.70x = 67,588,788,278.88
  5. Step 5: Solve for x
    x = 67,588,788,278.88/334,434.70
  6. Step 6: Final answer
    x = 202,098.61

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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.