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Finding the Fourth Proportional to 407,973.23, 611,958.82 and 108,453.67

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Solution

The fourth proportional to 407,973.23, 611,958.82 and 108,453.67 is: 162,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,973.23 : 611,958.82 = 108,453.67 : x
  2. Step 2: Convert to fraction form
    407,973.23/611,958.82 = 108,453.67/x
  3. Step 3: Cross multiply
    407,973.23x = 611,958.82 × 108,453.67
  4. Step 4: Simplify right side
    407,973.23x = 66,369,181,206.92
  5. Step 5: Solve for x
    x = 66,369,181,206.92/407,973.23
  6. Step 6: Final answer
    x = 162,680.24

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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.