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Finding the Fourth Proportional to 173,957.09, 260,853.39 and 67,390.97

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Solution

The fourth proportional to 173,957.09, 260,853.39 and 67,390.97 is: 101,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,957.09 : 260,853.39 = 67,390.97 : x
  2. Step 2: Convert to fraction form
    173,957.09/260,853.39 = 67,390.97/x
  3. Step 3: Cross multiply
    173,957.09x = 260,853.39 × 67,390.97
  4. Step 4: Simplify right side
    173,957.09x = 17,579,161,675.62
  5. Step 5: Solve for x
    x = 17,579,161,675.62/173,957.09
  6. Step 6: Final answer
    x = 101,054.59

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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.