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Finding the Fourth Proportional to 117,608.20, 176,120.70 and 94,280.20

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Solution

The fourth proportional to 117,608.20, 176,120.70 and 94,280.20 is: 141,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,608.20 : 176,120.70 = 94,280.20 : x
  2. Step 2: Convert to fraction form
    117,608.20/176,120.70 = 94,280.20/x
  3. Step 3: Cross multiply
    117,608.20x = 176,120.70 × 94,280.20
  4. Step 4: Simplify right side
    117,608.20x = 16,604,694,820.14
  5. Step 5: Solve for x
    x = 16,604,694,820.14/117,608.20
  6. Step 6: Final answer
    x = 141,186.54

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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.