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Finding the Fourth Proportional to 71,469.42, 107,189.08 and 46,092.92

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Solution

The fourth proportional to 71,469.42, 107,189.08 and 46,092.92 is: 69,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,469.42 : 107,189.08 = 46,092.92 : x
  2. Step 2: Convert to fraction form
    71,469.42/107,189.08 = 46,092.92/x
  3. Step 3: Cross multiply
    71,469.42x = 107,189.08 × 46,092.92
  4. Step 4: Simplify right side
    71,469.42x = 4,940,657,689.31
  5. Step 5: Solve for x
    x = 4,940,657,689.31/71,469.42
  6. Step 6: Final answer
    x = 69,129.67

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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.