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Finding the Fourth Proportional to 224,305.40, 336,491.75 and 72,451.76

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Solution

The fourth proportional to 224,305.40, 336,491.75 and 72,451.76 is: 108,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,305.40 : 336,491.75 = 72,451.76 : x
  2. Step 2: Convert to fraction form
    224,305.40/336,491.75 = 72,451.76/x
  3. Step 3: Cross multiply
    224,305.40x = 336,491.75 × 72,451.76
  4. Step 4: Simplify right side
    224,305.40x = 24,379,418,011.65
  5. Step 5: Solve for x
    x = 24,379,418,011.65/224,305.40
  6. Step 6: Final answer
    x = 108,688.50

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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.