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Finding the Fourth Proportional to 84,674.50, 116,849.84 and 48,863.74

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Solution

The fourth proportional to 84,674.50, 116,849.84 and 48,863.74 is: 67,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,674.50 : 116,849.84 = 48,863.74 : x
  2. Step 2: Convert to fraction form
    84,674.50/116,849.84 = 48,863.74/x
  3. Step 3: Cross multiply
    84,674.50x = 116,849.84 × 48,863.74
  4. Step 4: Simplify right side
    84,674.50x = 5,709,720,200.80
  5. Step 5: Solve for x
    x = 5,709,720,200.80/84,674.50
  6. Step 6: Final answer
    x = 67,431.40

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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.