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Finding the Fourth Proportional to 251,186.10, 376,742.70 and 73,674.60

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Solution

The fourth proportional to 251,186.10, 376,742.70 and 73,674.60 is: 110,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,186.10 : 376,742.70 = 73,674.60 : x
  2. Step 2: Convert to fraction form
    251,186.10/376,742.70 = 73,674.60/x
  3. Step 3: Cross multiply
    251,186.10x = 376,742.70 × 73,674.60
  4. Step 4: Simplify right side
    251,186.10x = 27,756,367,725.42
  5. Step 5: Solve for x
    x = 27,756,367,725.42/251,186.10
  6. Step 6: Final answer
    x = 110,501.21

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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.