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Finding the Fourth Proportional to 248,586.23, 343,039.30 and 151,951.87

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Solution

The fourth proportional to 248,586.23, 343,039.30 and 151,951.87 is: 209,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,586.23 : 343,039.30 = 151,951.87 : x
  2. Step 2: Convert to fraction form
    248,586.23/343,039.30 = 151,951.87/x
  3. Step 3: Cross multiply
    248,586.23x = 343,039.30 × 151,951.87
  4. Step 4: Simplify right side
    248,586.23x = 52,125,463,118.49
  5. Step 5: Solve for x
    x = 52,125,463,118.49/248,586.23
  6. Step 6: Final answer
    x = 209,687.65

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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.