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Finding the Fourth Proportional to 86,194.40, 129,290.44 and 33,640.80

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Solution

The fourth proportional to 86,194.40, 129,290.44 and 33,640.80 is: 50,460.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,194.40 : 129,290.44 = 33,640.80 : x
  2. Step 2: Convert to fraction form
    86,194.40/129,290.44 = 33,640.80/x
  3. Step 3: Cross multiply
    86,194.40x = 129,290.44 × 33,640.80
  4. Step 4: Simplify right side
    86,194.40x = 4,349,433,833.95
  5. Step 5: Solve for x
    x = 4,349,433,833.95/86,194.40
  6. Step 6: Final answer
    x = 50,460.75

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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.