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Finding the Fourth Proportional to 252,700.56, 348,721.56 and 145,269.63

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Solution

The fourth proportional to 252,700.56, 348,721.56 and 145,269.63 is: 200,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,700.56 : 348,721.56 = 145,269.63 : x
  2. Step 2: Convert to fraction form
    252,700.56/348,721.56 = 145,269.63/x
  3. Step 3: Cross multiply
    252,700.56x = 348,721.56 × 145,269.63
  4. Step 4: Simplify right side
    252,700.56x = 50,658,651,994.22
  5. Step 5: Solve for x
    x = 50,658,651,994.22/252,700.56
  6. Step 6: Final answer
    x = 200,469.09

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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.