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Finding the Fourth Proportional to 84,489.58, 116,585.31 and 67,305.71

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Solution

The fourth proportional to 84,489.58, 116,585.31 and 67,305.71 is: 92,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,489.58 : 116,585.31 = 67,305.71 : x
  2. Step 2: Convert to fraction form
    84,489.58/116,585.31 = 67,305.71/x
  3. Step 3: Cross multiply
    84,489.58x = 116,585.31 × 67,305.71
  4. Step 4: Simplify right side
    84,489.58x = 7,846,857,065.12
  5. Step 5: Solve for x
    x = 7,846,857,065.12/84,489.58
  6. Step 6: Final answer
    x = 92,873.67

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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.