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Finding the Fourth Proportional to 253,997.55, 350,532.42 and 140,820.30

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Solution

The fourth proportional to 253,997.55, 350,532.42 and 140,820.30 is: 194,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,997.55 : 350,532.42 = 140,820.30 : x
  2. Step 2: Convert to fraction form
    253,997.55/350,532.42 = 140,820.30/x
  3. Step 3: Cross multiply
    253,997.55x = 350,532.42 × 140,820.30
  4. Step 4: Simplify right side
    253,997.55x = 49,362,080,544.13
  5. Step 5: Solve for x
    x = 49,362,080,544.13/253,997.55
  6. Step 6: Final answer
    x = 194,340.77

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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.