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Finding the Fourth Proportional to 70,093.80, 96,728.78 and 43,225.56

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Solution

The fourth proportional to 70,093.80, 96,728.78 and 43,225.56 is: 59,650.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,093.80 : 96,728.78 = 43,225.56 : x
  2. Step 2: Convert to fraction form
    70,093.80/96,728.78 = 43,225.56/x
  3. Step 3: Cross multiply
    70,093.80x = 96,728.78 × 43,225.56
  4. Step 4: Simplify right side
    70,093.80x = 4,181,154,983.85
  5. Step 5: Solve for x
    x = 4,181,154,983.85/70,093.80
  6. Step 6: Final answer
    x = 59,650.86

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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.