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Finding the Fourth Proportional to 251,242.64, 376,922.24 and 82,756.92

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Solution

The fourth proportional to 251,242.64, 376,922.24 and 82,756.92 is: 124,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,242.64 : 376,922.24 = 82,756.92 : x
  2. Step 2: Convert to fraction form
    251,242.64/376,922.24 = 82,756.92/x
  3. Step 3: Cross multiply
    251,242.64x = 376,922.24 × 82,756.92
  4. Step 4: Simplify right side
    251,242.64x = 31,192,923,248.12
  5. Step 5: Solve for x
    x = 31,192,923,248.12/251,242.64
  6. Step 6: Final answer
    x = 124,154.58

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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.