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Finding the Fourth Proportional to 269,490.34, 371,898.44 and 148,634.90

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Solution

The fourth proportional to 269,490.34, 371,898.44 and 148,634.90 is: 205,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,490.34 : 371,898.44 = 148,634.90 : x
  2. Step 2: Convert to fraction form
    269,490.34/371,898.44 = 148,634.90/x
  3. Step 3: Cross multiply
    269,490.34x = 371,898.44 × 148,634.90
  4. Step 4: Simplify right side
    269,490.34x = 55,277,086,788.89
  5. Step 5: Solve for x
    x = 55,277,086,788.89/269,490.34
  6. Step 6: Final answer
    x = 205,117.14

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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.