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Finding the Fourth Proportional to 269,644.49, 372,109.11 and 148,785.74

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Solution

The fourth proportional to 269,644.49, 372,109.11 and 148,785.74 is: 205,324.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,644.49 : 372,109.11 = 148,785.74 : x
  2. Step 2: Convert to fraction form
    269,644.49/372,109.11 = 148,785.74/x
  3. Step 3: Cross multiply
    269,644.49x = 372,109.11 × 148,785.74
  4. Step 4: Simplify right side
    269,644.49x = 55,364,529,292.09
  5. Step 5: Solve for x
    x = 55,364,529,292.09/269,644.49
  6. Step 6: Final answer
    x = 205,324.16

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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.