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Finding the Fourth Proportional to 76,479.73, 114,719.14 and 29,732.61

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Solution

The fourth proportional to 76,479.73, 114,719.14 and 29,732.61 is: 44,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,479.73 : 114,719.14 = 29,732.61 : x
  2. Step 2: Convert to fraction form
    76,479.73/114,719.14 = 29,732.61/x
  3. Step 3: Cross multiply
    76,479.73x = 114,719.14 × 29,732.61
  4. Step 4: Simplify right side
    76,479.73x = 3,410,899,130.80
  5. Step 5: Solve for x
    x = 3,410,899,130.80/76,479.73
  6. Step 6: Final answer
    x = 44,598.73

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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.