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Finding the Fourth Proportional to 200,319.85, 300,519.88 and 73,960.86

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Solution

The fourth proportional to 200,319.85, 300,519.88 and 73,960.86 is: 110,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,319.85 : 300,519.88 = 73,960.86 : x
  2. Step 2: Convert to fraction form
    200,319.85/300,519.88 = 73,960.86/x
  3. Step 3: Cross multiply
    200,319.85x = 300,519.88 × 73,960.86
  4. Step 4: Simplify right side
    200,319.85x = 22,226,708,586.99
  5. Step 5: Solve for x
    x = 22,226,708,586.99/200,319.85
  6. Step 6: Final answer
    x = 110,956.10

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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.