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Finding the Fourth Proportional to 76,157.42, 105,108.84 and 47,481.73

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Solution

The fourth proportional to 76,157.42, 105,108.84 and 47,481.73 is: 65,532.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,157.42 : 105,108.84 = 47,481.73 : x
  2. Step 2: Convert to fraction form
    76,157.42/105,108.84 = 47,481.73/x
  3. Step 3: Cross multiply
    76,157.42x = 105,108.84 × 47,481.73
  4. Step 4: Simplify right side
    76,157.42x = 4,990,749,298.72
  5. Step 5: Solve for x
    x = 4,990,749,298.72/76,157.42
  6. Step 6: Final answer
    x = 65,532.02

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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.