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Finding the Fourth Proportional to 73,080.68, 109,479.72 and 44,917.88

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Solution

The fourth proportional to 73,080.68, 109,479.72 and 44,917.88 is: 67,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,080.68 : 109,479.72 = 44,917.88 : x
  2. Step 2: Convert to fraction form
    73,080.68/109,479.72 = 44,917.88/x
  3. Step 3: Cross multiply
    73,080.68x = 109,479.72 × 44,917.88
  4. Step 4: Simplify right side
    73,080.68x = 4,917,596,925.39
  5. Step 5: Solve for x
    x = 4,917,596,925.39/73,080.68
  6. Step 6: Final answer
    x = 67,289.97

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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.