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Finding the Fourth Proportional to 173,901.72, 260,744.58 and 80,287.32

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Solution

The fourth proportional to 173,901.72, 260,744.58 and 80,287.32 is: 120,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,901.72 : 260,744.58 = 80,287.32 : x
  2. Step 2: Convert to fraction form
    173,901.72/260,744.58 = 80,287.32/x
  3. Step 3: Cross multiply
    173,901.72x = 260,744.58 × 80,287.32
  4. Step 4: Simplify right side
    173,901.72x = 20,934,483,532.73
  5. Step 5: Solve for x
    x = 20,934,483,532.73/173,901.72
  6. Step 6: Final answer
    x = 120,381.12

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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.