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Finding the Fourth Proportional to 101,082.80, 139,483.10 and 58,633.12

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Solution

The fourth proportional to 101,082.80, 139,483.10 and 58,633.12 is: 80,907.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,082.80 : 139,483.10 = 58,633.12 : x
  2. Step 2: Convert to fraction form
    101,082.80/139,483.10 = 58,633.12/x
  3. Step 3: Cross multiply
    101,082.80x = 139,483.10 × 58,633.12
  4. Step 4: Simplify right side
    101,082.80x = 8,178,329,340.27
  5. Step 5: Solve for x
    x = 8,178,329,340.27/101,082.80
  6. Step 6: Final answer
    x = 80,907.23

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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.