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Finding the Fourth Proportional to 137,449.88, 206,214.78 and 57,525.56

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Solution

The fourth proportional to 137,449.88, 206,214.78 and 57,525.56 is: 86,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,449.88 : 206,214.78 = 57,525.56 : x
  2. Step 2: Convert to fraction form
    137,449.88/206,214.78 = 57,525.56/x
  3. Step 3: Cross multiply
    137,449.88x = 206,214.78 × 57,525.56
  4. Step 4: Simplify right side
    137,449.88x = 11,862,620,699.78
  5. Step 5: Solve for x
    x = 11,862,620,699.78/137,449.88
  6. Step 6: Final answer
    x = 86,305.06

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1.5x scale

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.