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Finding the Fourth Proportional to 246,898.70, 340,720.66 and 133,721.48

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Solution

The fourth proportional to 246,898.70, 340,720.66 and 133,721.48 is: 184,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,898.70 : 340,720.66 = 133,721.48 : x
  2. Step 2: Convert to fraction form
    246,898.70/340,720.66 = 133,721.48/x
  3. Step 3: Cross multiply
    246,898.70x = 340,720.66 × 133,721.48
  4. Step 4: Simplify right side
    246,898.70x = 45,561,670,921.78
  5. Step 5: Solve for x
    x = 45,561,670,921.78/246,898.70
  6. Step 6: Final answer
    x = 184,535.89

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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.