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Finding the Fourth Proportional to 433,781.96, 650,653.79 and 118,238.87

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Solution

The fourth proportional to 433,781.96, 650,653.79 and 118,238.87 is: 177,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,781.96 : 650,653.79 = 118,238.87 : x
  2. Step 2: Convert to fraction form
    433,781.96/650,653.79 = 118,238.87/x
  3. Step 3: Cross multiply
    433,781.96x = 650,653.79 × 118,238.87
  4. Step 4: Simplify right side
    433,781.96x = 76,932,569,926.26
  5. Step 5: Solve for x
    x = 76,932,569,926.26/433,781.96
  6. Step 6: Final answer
    x = 177,353.09

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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.