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Finding the Fourth Proportional to 71,530.72, 107,226.48 and 34,080.80

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Solution

The fourth proportional to 71,530.72, 107,226.48 and 34,080.80 is: 51,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,530.72 : 107,226.48 = 34,080.80 : x
  2. Step 2: Convert to fraction form
    71,530.72/107,226.48 = 34,080.80/x
  3. Step 3: Cross multiply
    71,530.72x = 107,226.48 × 34,080.80
  4. Step 4: Simplify right side
    71,530.72x = 3,654,364,219.58
  5. Step 5: Solve for x
    x = 3,654,364,219.58/71,530.72
  6. Step 6: Final answer
    x = 51,088.04

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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.