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Finding the Fourth Proportional to 71,082.77, 106,583.45 and 57,068.65

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Solution

The fourth proportional to 71,082.77, 106,583.45 and 57,068.65 is: 85,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,082.77 : 106,583.45 = 57,068.65 : x
  2. Step 2: Convert to fraction form
    71,082.77/106,583.45 = 57,068.65/x
  3. Step 3: Cross multiply
    71,082.77x = 106,583.45 × 57,068.65
  4. Step 4: Simplify right side
    71,082.77x = 6,082,573,451.73
  5. Step 5: Solve for x
    x = 6,082,573,451.73/71,082.77
  6. Step 6: Final answer
    x = 85,570.30

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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.