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Finding the Fourth Proportional to 129,794.88, 179,115.12 and 73,224.48

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Solution

The fourth proportional to 129,794.88, 179,115.12 and 73,224.48 is: 101,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794.88 : 179,115.12 = 73,224.48 : x
  2. Step 2: Convert to fraction form
    129,794.88/179,115.12 = 73,224.48/x
  3. Step 3: Cross multiply
    129,794.88x = 179,115.12 × 73,224.48
  4. Step 4: Simplify right side
    129,794.88x = 13,115,611,522.14
  5. Step 5: Solve for x
    x = 13,115,611,522.14/129,794.88
  6. Step 6: Final answer
    x = 101,048.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.