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Finding the Fourth Proportional to 84,356.39, 116,406.28 and 48,540.62

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Solution

The fourth proportional to 84,356.39, 116,406.28 and 48,540.62 is: 66,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,356.39 : 116,406.28 = 48,540.62 : x
  2. Step 2: Convert to fraction form
    84,356.39/116,406.28 = 48,540.62/x
  3. Step 3: Cross multiply
    84,356.39x = 116,406.28 × 48,540.62
  4. Step 4: Simplify right side
    84,356.39x = 5,650,433,354.79
  5. Step 5: Solve for x
    x = 5,650,433,354.79/84,356.39
  6. Step 6: Final answer
    x = 66,982.87

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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.