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Finding the Fourth Proportional to 246,507.75, 340,180.70 and 145,905.75

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Solution

The fourth proportional to 246,507.75, 340,180.70 and 145,905.75 is: 201,349.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,507.75 : 340,180.70 = 145,905.75 : x
  2. Step 2: Convert to fraction form
    246,507.75/340,180.70 = 145,905.75/x
  3. Step 3: Cross multiply
    246,507.75x = 340,180.70 × 145,905.75
  4. Step 4: Simplify right side
    246,507.75x = 49,634,319,439.50
  5. Step 5: Solve for x
    x = 49,634,319,439.50/246,507.75
  6. Step 6: Final answer
    x = 201,349.94

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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.