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Finding the Fourth Proportional to 207,003.30, 310,395.60 and 88,540.80

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Solution

The fourth proportional to 207,003.30, 310,395.60 and 88,540.80 is: 132,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,003.30 : 310,395.60 = 88,540.80 : x
  2. Step 2: Convert to fraction form
    207,003.30/310,395.60 = 88,540.80/x
  3. Step 3: Cross multiply
    207,003.30x = 310,395.60 × 88,540.80
  4. Step 4: Simplify right side
    207,003.30x = 27,482,674,740.48
  5. Step 5: Solve for x
    x = 27,482,674,740.48/207,003.30
  6. Step 6: Final answer
    x = 132,764.43

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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.