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Finding the Fourth Proportional to 173,908.60, 260,960.10 and 74,051.80

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Solution

The fourth proportional to 173,908.60, 260,960.10 and 74,051.80 is: 111,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,908.60 : 260,960.10 = 74,051.80 : x
  2. Step 2: Convert to fraction form
    173,908.60/260,960.10 = 74,051.80/x
  3. Step 3: Cross multiply
    173,908.60x = 260,960.10 × 74,051.80
  4. Step 4: Simplify right side
    173,908.60x = 19,324,565,133.18
  5. Step 5: Solve for x
    x = 19,324,565,133.18/173,908.60
  6. Step 6: Final answer
    x = 111,119.09

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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.