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Finding the Fourth Proportional to 86,192.40, 129,235.68 and 33,540.60

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Solution

The fourth proportional to 86,192.40, 129,235.68 and 33,540.60 is: 50,290.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,192.40 : 129,235.68 = 33,540.60 : x
  2. Step 2: Convert to fraction form
    86,192.40/129,235.68 = 33,540.60/x
  3. Step 3: Cross multiply
    86,192.40x = 129,235.68 × 33,540.60
  4. Step 4: Simplify right side
    86,192.40x = 4,334,642,248.61
  5. Step 5: Solve for x
    x = 4,334,642,248.61/86,192.40
  6. Step 6: Final answer
    x = 50,290.31

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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.