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Finding the Fourth Proportional to 173,728.62, 260,442.14 and 68,521.77

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Solution

The fourth proportional to 173,728.62, 260,442.14 and 68,521.77 is: 102,723.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,728.62 : 260,442.14 = 68,521.77 : x
  2. Step 2: Convert to fraction form
    173,728.62/260,442.14 = 68,521.77/x
  3. Step 3: Cross multiply
    173,728.62x = 260,442.14 × 68,521.77
  4. Step 4: Simplify right side
    173,728.62x = 17,845,956,072.78
  5. Step 5: Solve for x
    x = 17,845,956,072.78/173,728.62
  6. Step 6: Final answer
    x = 102,723.18

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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.