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Finding the Fourth Proportional to 223,491.40, 335,139.90 and 73,673.80

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Solution

The fourth proportional to 223,491.40, 335,139.90 and 73,673.80 is: 110,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,491.40 : 335,139.90 = 73,673.80 : x
  2. Step 2: Convert to fraction form
    223,491.40/335,139.90 = 73,673.80/x
  3. Step 3: Cross multiply
    223,491.40x = 335,139.90 × 73,673.80
  4. Step 4: Simplify right side
    223,491.40x = 24,691,029,964.62
  5. Step 5: Solve for x
    x = 24,691,029,964.62/223,491.40
  6. Step 6: Final answer
    x = 110,478.66

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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.