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Finding the Fourth Proportional to 173,791.05, 260,728.19 and 72,532.79

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Solution

The fourth proportional to 173,791.05, 260,728.19 and 72,532.79 is: 108,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,791.05 : 260,728.19 = 72,532.79 : x
  2. Step 2: Convert to fraction form
    173,791.05/260,728.19 = 72,532.79/x
  3. Step 3: Cross multiply
    173,791.05x = 260,728.19 × 72,532.79
  4. Step 4: Simplify right side
    173,791.05x = 18,911,343,341.51
  5. Step 5: Solve for x
    x = 18,911,343,341.51/173,791.05
  6. Step 6: Final answer
    x = 108,816.56

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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.