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Finding the Fourth Proportional to 251,446.70, 377,060.70 and 82,901.90

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Solution

The fourth proportional to 251,446.70, 377,060.70 and 82,901.90 is: 124,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,446.70 : 377,060.70 = 82,901.90 : x
  2. Step 2: Convert to fraction form
    251,446.70/377,060.70 = 82,901.90/x
  3. Step 3: Cross multiply
    251,446.70x = 377,060.70 × 82,901.90
  4. Step 4: Simplify right side
    251,446.70x = 31,259,048,445.33
  5. Step 5: Solve for x
    x = 31,259,048,445.33/251,446.70
  6. Step 6: Final answer
    x = 124,316.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.