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Finding the Fourth Proportional to 173,326.50, 259,956.87 and 84,490.66

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Solution

The fourth proportional to 173,326.50, 259,956.87 and 84,490.66 is: 126,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,326.50 : 259,956.87 = 84,490.66 : x
  2. Step 2: Convert to fraction form
    173,326.50/259,956.87 = 84,490.66/x
  3. Step 3: Cross multiply
    173,326.50x = 259,956.87 × 84,490.66
  4. Step 4: Simplify right side
    173,326.50x = 21,963,927,517.83
  5. Step 5: Solve for x
    x = 21,963,927,517.83/173,326.50
  6. Step 6: Final answer
    x = 126,719.96

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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.