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Finding the Fourth Proportional to 317,082.30, 437,572.85 and 173,855.67

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Solution

The fourth proportional to 317,082.30, 437,572.85 and 173,855.67 is: 239,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,082.30 : 437,572.85 = 173,855.67 : x
  2. Step 2: Convert to fraction form
    317,082.30/437,572.85 = 173,855.67/x
  3. Step 3: Cross multiply
    317,082.30x = 437,572.85 × 173,855.67
  4. Step 4: Simplify right side
    317,082.30x = 76,074,520,141.28
  5. Step 5: Solve for x
    x = 76,074,520,141.28/317,082.30
  6. Step 6: Final answer
    x = 239,920.42

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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.