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Finding the Fourth Proportional to 61,723.50, 85,178.43 and 33,429.39

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Solution

The fourth proportional to 61,723.50, 85,178.43 and 33,429.39 is: 46,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,723.50 : 85,178.43 = 33,429.39 : x
  2. Step 2: Convert to fraction form
    61,723.50/85,178.43 = 33,429.39/x
  3. Step 3: Cross multiply
    61,723.50x = 85,178.43 × 33,429.39
  4. Step 4: Simplify right side
    61,723.50x = 2,847,462,956.06
  5. Step 5: Solve for x
    x = 2,847,462,956.06/61,723.50
  6. Step 6: Final answer
    x = 46,132.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.