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Finding the Fourth Proportional to 252,840.52, 348,930.53 and 145,410.64

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Solution

The fourth proportional to 252,840.52, 348,930.53 and 145,410.64 is: 200,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,840.52 : 348,930.53 = 145,410.64 : x
  2. Step 2: Convert to fraction form
    252,840.52/348,930.53 = 145,410.64/x
  3. Step 3: Cross multiply
    252,840.52x = 348,930.53 × 145,410.64
  4. Step 4: Simplify right side
    252,840.52x = 50,738,210,628.75
  5. Step 5: Solve for x
    x = 50,738,210,628.75/252,840.52
  6. Step 6: Final answer
    x = 200,672.78

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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.