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Finding the Fourth Proportional to 120,803.98, 166,792.90 and 75,502.33

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Solution

The fourth proportional to 120,803.98, 166,792.90 and 75,502.33 is: 104,245.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,803.98 : 166,792.90 = 75,502.33 : x
  2. Step 2: Convert to fraction form
    120,803.98/166,792.90 = 75,502.33/x
  3. Step 3: Cross multiply
    120,803.98x = 166,792.90 × 75,502.33
  4. Step 4: Simplify right side
    120,803.98x = 12,593,251,900.94
  5. Step 5: Solve for x
    x = 12,593,251,900.94/120,803.98
  6. Step 6: Final answer
    x = 104,245.34

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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.