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Finding the Fourth Proportional to 84,612.70, 116,791.20 and 48,826.12

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Solution

The fourth proportional to 84,612.70, 116,791.20 and 48,826.12 is: 67,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,612.70 : 116,791.20 = 48,826.12 : x
  2. Step 2: Convert to fraction form
    84,612.70/116,791.20 = 48,826.12/x
  3. Step 3: Cross multiply
    84,612.70x = 116,791.20 × 48,826.12
  4. Step 4: Simplify right side
    84,612.70x = 5,702,461,146.14
  5. Step 5: Solve for x
    x = 5,702,461,146.14/84,612.70
  6. Step 6: Final answer
    x = 67,394.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.