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Finding the Fourth Proportional to 117,076.80, 175,672.80 and 88,987.20

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Solution

The fourth proportional to 117,076.80, 175,672.80 and 88,987.20 is: 133,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,076.80 : 175,672.80 = 88,987.20 : x
  2. Step 2: Convert to fraction form
    117,076.80/175,672.80 = 88,987.20/x
  3. Step 3: Cross multiply
    117,076.80x = 175,672.80 × 88,987.20
  4. Step 4: Simplify right side
    117,076.80x = 15,632,630,588.16
  5. Step 5: Solve for x
    x = 15,632,630,588.16/117,076.80
  6. Step 6: Final answer
    x = 133,524.58

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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.