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Finding the Fourth Proportional to 79,850.71, 119,796.59 and 29,931.49

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Solution

The fourth proportional to 79,850.71, 119,796.59 and 29,931.49 is: 44,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,850.71 : 119,796.59 = 29,931.49 : x
  2. Step 2: Convert to fraction form
    79,850.71/119,796.59 = 29,931.49/x
  3. Step 3: Cross multiply
    79,850.71x = 119,796.59 × 29,931.49
  4. Step 4: Simplify right side
    79,850.71x = 3,585,690,285.96
  5. Step 5: Solve for x
    x = 3,585,690,285.96/79,850.71
  6. Step 6: Final answer
    x = 44,904.93

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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.