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Finding the Fourth Proportional to 272,906.01, 376,309.40 and 186,879.15

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Solution

The fourth proportional to 272,906.01, 376,309.40 and 186,879.15 is: 257,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,906.01 : 376,309.40 = 186,879.15 : x
  2. Step 2: Convert to fraction form
    272,906.01/376,309.40 = 186,879.15/x
  3. Step 3: Cross multiply
    272,906.01x = 376,309.40 × 186,879.15
  4. Step 4: Simplify right side
    272,906.01x = 70,324,379,874.61
  5. Step 5: Solve for x
    x = 70,324,379,874.61/272,906.01
  6. Step 6: Final answer
    x = 257,687.18

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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.