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Finding the Fourth Proportional to 253,951.98, 350,489.43 and 157,186.87

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Solution

The fourth proportional to 253,951.98, 350,489.43 and 157,186.87 is: 216,939.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,951.98 : 350,489.43 = 157,186.87 : x
  2. Step 2: Convert to fraction form
    253,951.98/350,489.43 = 157,186.87/x
  3. Step 3: Cross multiply
    253,951.98x = 350,489.43 × 157,186.87
  4. Step 4: Simplify right side
    253,951.98x = 55,092,336,579.31
  5. Step 5: Solve for x
    x = 55,092,336,579.31/253,951.98
  6. Step 6: Final answer
    x = 216,939.98

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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.