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Finding the Fourth Proportional to 253,034.74, 349,213.44 and 145,609.30

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Solution

The fourth proportional to 253,034.74, 349,213.44 and 145,609.30 is: 200,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,034.74 : 349,213.44 = 145,609.30 : x
  2. Step 2: Convert to fraction form
    253,034.74/349,213.44 = 145,609.30/x
  3. Step 3: Cross multiply
    253,034.74x = 349,213.44 × 145,609.30
  4. Step 4: Simplify right side
    253,034.74x = 50,848,724,548.99
  5. Step 5: Solve for x
    x = 50,848,724,548.99/253,034.74
  6. Step 6: Final answer
    x = 200,955.51

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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.