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Finding the Fourth Proportional to 129,714.32, 194,493.48 and 50,734.40

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Solution

The fourth proportional to 129,714.32, 194,493.48 and 50,734.40 is: 76,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,714.32 : 194,493.48 = 50,734.40 : x
  2. Step 2: Convert to fraction form
    129,714.32/194,493.48 = 50,734.40/x
  3. Step 3: Cross multiply
    129,714.32x = 194,493.48 × 50,734.40
  4. Step 4: Simplify right side
    129,714.32x = 9,867,510,011.71
  5. Step 5: Solve for x
    x = 9,867,510,011.71/129,714.32
  6. Step 6: Final answer
    x = 76,071.09

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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.