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Finding the Fourth Proportional to 272,435.52, 375,951.54 and 149,916.45

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Solution

The fourth proportional to 272,435.52, 375,951.54 and 149,916.45 is: 206,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,435.52 : 375,951.54 = 149,916.45 : x
  2. Step 2: Convert to fraction form
    272,435.52/375,951.54 = 149,916.45/x
  3. Step 3: Cross multiply
    272,435.52x = 375,951.54 × 149,916.45
  4. Step 4: Simplify right side
    272,435.52x = 56,361,320,248.83
  5. Step 5: Solve for x
    x = 56,361,320,248.83/272,435.52
  6. Step 6: Final answer
    x = 206,879.49

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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.