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Finding the Fourth Proportional to 262,082.70, 392,929.65 and 112,200.30

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Solution

The fourth proportional to 262,082.70, 392,929.65 and 112,200.30 is: 168,217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,082.70 : 392,929.65 = 112,200.30 : x
  2. Step 2: Convert to fraction form
    262,082.70/392,929.65 = 112,200.30/x
  3. Step 3: Cross multiply
    262,082.70x = 392,929.65 × 112,200.30
  4. Step 4: Simplify right side
    262,082.70x = 44,086,824,608.90
  5. Step 5: Solve for x
    x = 44,086,824,608.90/262,082.70
  6. Step 6: Final answer
    x = 168,217.23

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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.