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Finding the Fourth Proportional to 253,832.70, 350,289.10 and 140,655.45

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Solution

The fourth proportional to 253,832.70, 350,289.10 and 140,655.45 is: 194,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,832.70 : 350,289.10 = 140,655.45 : x
  2. Step 2: Convert to fraction form
    253,832.70/350,289.10 = 140,655.45/x
  3. Step 3: Cross multiply
    253,832.70x = 350,289.10 × 140,655.45
  4. Step 4: Simplify right side
    253,832.70x = 49,270,070,990.60
  5. Step 5: Solve for x
    x = 49,270,070,990.60/253,832.70
  6. Step 6: Final answer
    x = 194,104.51

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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.