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Finding the Fourth Proportional to 133,082.10, 199,679.85 and 69,950.70

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Solution

The fourth proportional to 133,082.10, 199,679.85 and 69,950.70 is: 104,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,082.10 : 199,679.85 = 69,950.70 : x
  2. Step 2: Convert to fraction form
    133,082.10/199,679.85 = 69,950.70/x
  3. Step 3: Cross multiply
    133,082.10x = 199,679.85 × 69,950.70
  4. Step 4: Simplify right side
    133,082.10x = 13,967,745,283.40
  5. Step 5: Solve for x
    x = 13,967,745,283.40/133,082.10
  6. Step 6: Final answer
    x = 104,955.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.