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Finding the Fourth Proportional to 73,199.76, 109,844.76 and 28,818.96

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Solution

The fourth proportional to 73,199.76, 109,844.76 and 28,818.96 is: 43,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,199.76 : 109,844.76 = 28,818.96 : x
  2. Step 2: Convert to fraction form
    73,199.76/109,844.76 = 28,818.96/x
  3. Step 3: Cross multiply
    73,199.76x = 109,844.76 × 28,818.96
  4. Step 4: Simplify right side
    73,199.76x = 3,165,611,744.65
  5. Step 5: Solve for x
    x = 3,165,611,744.65/73,199.76
  6. Step 6: Final answer
    x = 43,246.20

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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.