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Finding the Fourth Proportional to 83,853.37, 125,741.17 and 31,248.73

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Solution

The fourth proportional to 83,853.37, 125,741.17 and 31,248.73 is: 46,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,853.37 : 125,741.17 = 31,248.73 : x
  2. Step 2: Convert to fraction form
    83,853.37/125,741.17 = 31,248.73/x
  3. Step 3: Cross multiply
    83,853.37x = 125,741.17 × 31,248.73
  4. Step 4: Simplify right side
    83,853.37x = 3,929,251,871.21
  5. Step 5: Solve for x
    x = 3,929,251,871.21/83,853.37
  6. Step 6: Final answer
    x = 46,858.60

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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.