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Finding the Fourth Proportional to 71,166.44, 106,751.55 and 31,164.76

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Solution

The fourth proportional to 71,166.44, 106,751.55 and 31,164.76 is: 46,747.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,166.44 : 106,751.55 = 31,164.76 : x
  2. Step 2: Convert to fraction form
    71,166.44/106,751.55 = 31,164.76/x
  3. Step 3: Cross multiply
    71,166.44x = 106,751.55 × 31,164.76
  4. Step 4: Simplify right side
    71,166.44x = 3,326,886,685.69
  5. Step 5: Solve for x
    x = 3,326,886,685.69/71,166.44
  6. Step 6: Final answer
    x = 46,747.97

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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.