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Finding the Fourth Proportional to 83,418.37, 125,133.40 and 33,498.47

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Solution

The fourth proportional to 83,418.37, 125,133.40 and 33,498.47 is: 50,250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,418.37 : 125,133.40 = 33,498.47 : x
  2. Step 2: Convert to fraction form
    83,418.37/125,133.40 = 33,498.47/x
  3. Step 3: Cross multiply
    83,418.37x = 125,133.40 × 33,498.47
  4. Step 4: Simplify right side
    83,418.37x = 4,191,776,965.57
  5. Step 5: Solve for x
    x = 4,191,776,965.57/83,418.37
  6. Step 6: Final answer
    x = 50,250.04

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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.