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Finding the Fourth Proportional to 71,212.68, 98,234.44 and 45,690.55

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Solution

The fourth proportional to 71,212.68, 98,234.44 and 45,690.55 is: 63,027.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,212.68 : 98,234.44 = 45,690.55 : x
  2. Step 2: Convert to fraction form
    71,212.68/98,234.44 = 45,690.55/x
  3. Step 3: Cross multiply
    71,212.68x = 98,234.44 × 45,690.55
  4. Step 4: Simplify right side
    71,212.68x = 4,488,385,232.73
  5. Step 5: Solve for x
    x = 4,488,385,232.73/71,212.68
  6. Step 6: Final answer
    x = 63,027.89

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1.5x scale

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.