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Finding the Fourth Proportional to 272,305.86, 408,502.53 and 114,579.42

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Solution

The fourth proportional to 272,305.86, 408,502.53 and 114,579.42 is: 171,887.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,305.86 : 408,502.53 = 114,579.42 : x
  2. Step 2: Convert to fraction form
    272,305.86/408,502.53 = 114,579.42/x
  3. Step 3: Cross multiply
    272,305.86x = 408,502.53 × 114,579.42
  4. Step 4: Simplify right side
    272,305.86x = 46,805,982,955.93
  5. Step 5: Solve for x
    x = 46,805,982,955.93/272,305.86
  6. Step 6: Final answer
    x = 171,887.53

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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.