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Finding the Fourth Proportional to 157,508.49, 236,213.52 and 68,738.16

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Solution

The fourth proportional to 157,508.49, 236,213.52 and 68,738.16 is: 103,085.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,508.49 : 236,213.52 = 68,738.16 : x
  2. Step 2: Convert to fraction form
    157,508.49/236,213.52 = 68,738.16/x
  3. Step 3: Cross multiply
    157,508.49x = 236,213.52 × 68,738.16
  4. Step 4: Simplify right side
    157,508.49x = 16,236,882,731.92
  5. Step 5: Solve for x
    x = 16,236,882,731.92/157,508.49
  6. Step 6: Final answer
    x = 103,085.76

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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.