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Finding the Fourth Proportional to 252,157.52, 347,977.51 and 143,262.05

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Solution

The fourth proportional to 252,157.52, 347,977.51 and 143,262.05 is: 197,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,157.52 : 347,977.51 = 143,262.05 : x
  2. Step 2: Convert to fraction form
    252,157.52/347,977.51 = 143,262.05/x
  3. Step 3: Cross multiply
    252,157.52x = 347,977.51 × 143,262.05
  4. Step 4: Simplify right side
    252,157.52x = 49,851,969,338.45
  5. Step 5: Solve for x
    x = 49,851,969,338.45/252,157.52
  6. Step 6: Final answer
    x = 197,701.69

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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.