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Finding the Fourth Proportional to 130,310.88, 179,819.08 and 73,725.92

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Solution

The fourth proportional to 130,310.88, 179,819.08 and 73,725.92 is: 101,736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,310.88 : 179,819.08 = 73,725.92 : x
  2. Step 2: Convert to fraction form
    130,310.88/179,819.08 = 73,725.92/x
  3. Step 3: Cross multiply
    130,310.88x = 179,819.08 × 73,725.92
  4. Step 4: Simplify right side
    130,310.88x = 13,257,327,106.55
  5. Step 5: Solve for x
    x = 13,257,327,106.55/130,310.88
  6. Step 6: Final answer
    x = 101,736.15

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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.