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Finding the Fourth Proportional to 253,897.84, 350,378.24 and 140,720.56

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Solution

The fourth proportional to 253,897.84, 350,378.24 and 140,720.56 is: 194,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,897.84 : 350,378.24 = 140,720.56 : x
  2. Step 2: Convert to fraction form
    253,897.84/350,378.24 = 140,720.56/x
  3. Step 3: Cross multiply
    253,897.84x = 350,378.24 × 140,720.56
  4. Step 4: Simplify right side
    253,897.84x = 49,305,422,144.61
  5. Step 5: Solve for x
    x = 49,305,422,144.61/253,897.84
  6. Step 6: Final answer
    x = 194,193.94

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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.