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Finding the Fourth Proportional to 66,158.76, 91,299.08 and 36,350.76

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Solution

The fourth proportional to 66,158.76, 91,299.08 and 36,350.76 is: 50,164.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,158.76 : 91,299.08 = 36,350.76 : x
  2. Step 2: Convert to fraction form
    66,158.76/91,299.08 = 36,350.76/x
  3. Step 3: Cross multiply
    66,158.76x = 91,299.08 × 36,350.76
  4. Step 4: Simplify right side
    66,158.76x = 3,318,790,945.30
  5. Step 5: Solve for x
    x = 3,318,790,945.30/66,158.76
  6. Step 6: Final answer
    x = 50,164.04

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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.