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Finding the Fourth Proportional to 253,704.12, 350,123.24 and 140,526.88

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Solution

The fourth proportional to 253,704.12, 350,123.24 and 140,526.88 is: 193,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,704.12 : 350,123.24 = 140,526.88 : x
  2. Step 2: Convert to fraction form
    253,704.12/350,123.24 = 140,526.88/x
  3. Step 3: Cross multiply
    253,704.12x = 350,123.24 × 140,526.88
  4. Step 4: Simplify right side
    253,704.12x = 49,201,726,532.69
  5. Step 5: Solve for x
    x = 49,201,726,532.69/253,704.12
  6. Step 6: Final answer
    x = 193,933.49

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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.