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Finding the Fourth Proportional to 351,452.31, 527,051.34 and 126,752.40

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Solution

The fourth proportional to 351,452.31, 527,051.34 and 126,752.40 is: 190,082.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,452.31 : 527,051.34 = 126,752.40 : x
  2. Step 2: Convert to fraction form
    351,452.31/527,051.34 = 126,752.40/x
  3. Step 3: Cross multiply
    351,452.31x = 527,051.34 × 126,752.40
  4. Step 4: Simplify right side
    351,452.31x = 66,805,022,268.22
  5. Step 5: Solve for x
    x = 66,805,022,268.22/351,452.31
  6. Step 6: Final answer
    x = 190,082.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.