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Finding the Fourth Proportional to 154,615.80, 231,750.90 and 88,087.80

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Solution

The fourth proportional to 154,615.80, 231,750.90 and 88,087.80 is: 132,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,615.80 : 231,750.90 = 88,087.80 : x
  2. Step 2: Convert to fraction form
    154,615.80/231,750.90 = 88,087.80/x
  3. Step 3: Cross multiply
    154,615.80x = 231,750.90 × 88,087.80
  4. Step 4: Simplify right side
    154,615.80x = 20,414,426,929.02
  5. Step 5: Solve for x
    x = 20,414,426,929.02/154,615.80
  6. Step 6: Final answer
    x = 132,033.25

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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.