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Finding the Fourth Proportional to 84,674.40, 116,865.90 and 48,859.44

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Solution

The fourth proportional to 84,674.40, 116,865.90 and 48,859.44 is: 67,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,674.40 : 116,865.90 = 48,859.44 : x
  2. Step 2: Convert to fraction form
    84,674.40/116,865.90 = 48,859.44/x
  3. Step 3: Cross multiply
    84,674.40x = 116,865.90 × 48,859.44
  4. Step 4: Simplify right side
    84,674.40x = 5,710,002,429.10
  5. Step 5: Solve for x
    x = 5,710,002,429.10/84,674.40
  6. Step 6: Final answer
    x = 67,434.81

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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.