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Finding the Fourth Proportional to 103,245.72, 154,895.22 and 33,125.64

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Solution

The fourth proportional to 103,245.72, 154,895.22 and 33,125.64 is: 49,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,245.72 : 154,895.22 = 33,125.64 : x
  2. Step 2: Convert to fraction form
    103,245.72/154,895.22 = 33,125.64/x
  3. Step 3: Cross multiply
    103,245.72x = 154,895.22 × 33,125.64
  4. Step 4: Simplify right side
    103,245.72x = 5,131,003,295.44
  5. Step 5: Solve for x
    x = 5,131,003,295.44/103,245.72
  6. Step 6: Final answer
    x = 49,697.01

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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.