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Finding the Fourth Proportional to 117,467.20, 175,909.20 and 94,139.20

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Solution

The fourth proportional to 117,467.20, 175,909.20 and 94,139.20 is: 140,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,467.20 : 175,909.20 = 94,139.20 : x
  2. Step 2: Convert to fraction form
    117,467.20/175,909.20 = 94,139.20/x
  3. Step 3: Cross multiply
    117,467.20x = 175,909.20 × 94,139.20
  4. Step 4: Simplify right side
    117,467.20x = 16,559,951,360.64
  5. Step 5: Solve for x
    x = 16,559,951,360.64/117,467.20
  6. Step 6: Final answer
    x = 140,975.11

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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.