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Finding the Fourth Proportional to 262,338.70, 393,313.65 and 112,456.30

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Solution

The fourth proportional to 262,338.70, 393,313.65 and 112,456.30 is: 168,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,338.70 : 393,313.65 = 112,456.30 : x
  2. Step 2: Convert to fraction form
    262,338.70/393,313.65 = 112,456.30/x
  3. Step 3: Cross multiply
    262,338.70x = 393,313.65 × 112,456.30
  4. Step 4: Simplify right side
    262,338.70x = 44,230,597,818.50
  5. Step 5: Solve for x
    x = 44,230,597,818.50/262,338.70
  6. Step 6: Final answer
    x = 168,601.12

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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.