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Finding the Fourth Proportional to 117,404.20, 176,106.30 and 89,410.60

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Solution

The fourth proportional to 117,404.20, 176,106.30 and 89,410.60 is: 134,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,404.20 : 176,106.30 = 89,410.60 : x
  2. Step 2: Convert to fraction form
    117,404.20/176,106.30 = 89,410.60/x
  3. Step 3: Cross multiply
    117,404.20x = 176,106.30 × 89,410.60
  4. Step 4: Simplify right side
    117,404.20x = 15,745,769,946.78
  5. Step 5: Solve for x
    x = 15,745,769,946.78/117,404.20
  6. Step 6: Final answer
    x = 134,115.90

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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.