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Finding the Fourth Proportional to 71,628.67, 107,295.35 and 41,956.55

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Solution

The fourth proportional to 71,628.67, 107,295.35 and 41,956.55 is: 62,848.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,628.67 : 107,295.35 = 41,956.55 : x
  2. Step 2: Convert to fraction form
    71,628.67/107,295.35 = 41,956.55/x
  3. Step 3: Cross multiply
    71,628.67x = 107,295.35 × 41,956.55
  4. Step 4: Simplify right side
    71,628.67x = 4,501,742,609.15
  5. Step 5: Solve for x
    x = 4,501,742,609.15/71,628.67
  6. Step 6: Final answer
    x = 62,848.33

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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.