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Finding the Fourth Proportional to 129,997.92, 194,995.96 and 36,503.76

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Solution

The fourth proportional to 129,997.92, 194,995.96 and 36,503.76 is: 54,755.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,997.92 : 194,995.96 = 36,503.76 : x
  2. Step 2: Convert to fraction form
    129,997.92/194,995.96 = 36,503.76/x
  3. Step 3: Cross multiply
    129,997.92x = 194,995.96 × 36,503.76
  4. Step 4: Simplify right side
    129,997.92x = 7,118,085,724.81
  5. Step 5: Solve for x
    x = 7,118,085,724.81/129,997.92
  6. Step 6: Final answer
    x = 54,755.38

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1.5x scale

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.