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Finding the Fourth Proportional to 508,063.44, 762,146.18 and 134,086.44

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Solution

The fourth proportional to 508,063.44, 762,146.18 and 134,086.44 is: 201,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,063.44 : 762,146.18 = 134,086.44 : x
  2. Step 2: Convert to fraction form
    508,063.44/762,146.18 = 134,086.44/x
  3. Step 3: Cross multiply
    508,063.44x = 762,146.18 × 134,086.44
  4. Step 4: Simplify right side
    508,063.44x = 102,193,468,035.80
  5. Step 5: Solve for x
    x = 102,193,468,035.80/508,063.44
  6. Step 6: Final answer
    x = 201,143.13

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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.