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Finding the Fourth Proportional to 71,595.20, 107,392.80 and 36,530.30

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Solution

The fourth proportional to 71,595.20, 107,392.80 and 36,530.30 is: 54,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,595.20 : 107,392.80 = 36,530.30 : x
  2. Step 2: Convert to fraction form
    71,595.20/107,392.80 = 36,530.30/x
  3. Step 3: Cross multiply
    71,595.20x = 107,392.80 × 36,530.30
  4. Step 4: Simplify right side
    71,595.20x = 3,923,091,201.84
  5. Step 5: Solve for x
    x = 3,923,091,201.84/71,595.20
  6. Step 6: Final answer
    x = 54,795.45

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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.