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Finding the Fourth Proportional to 508,062.43, 762,144.68 and 134,085.43

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Solution

The fourth proportional to 508,062.43, 762,144.68 and 134,085.43 is: 201,141.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,062.43 : 762,144.68 = 134,085.43 : x
  2. Step 2: Convert to fraction form
    508,062.43/762,144.68 = 134,085.43/x
  3. Step 3: Cross multiply
    508,062.43x = 762,144.68 × 134,085.43
  4. Step 4: Simplify right side
    508,062.43x = 102,192,497,140.01
  5. Step 5: Solve for x
    x = 102,192,497,140.01/508,062.43
  6. Step 6: Final answer
    x = 201,141.61

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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.