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Finding the Fourth Proportional to 173,326, 259,956.12 and 84,490.16

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Solution

The fourth proportional to 173,326, 259,956.12 and 84,490.16 is: 126,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,326 : 259,956.12 = 84,490.16 : x
  2. Step 2: Convert to fraction form
    173,326/259,956.12 = 84,490.16/x
  3. Step 3: Cross multiply
    173,326x = 259,956.12 × 84,490.16
  4. Step 4: Simplify right side
    173,326x = 21,963,734,171.78
  5. Step 5: Solve for x
    x = 21,963,734,171.78/173,326
  6. Step 6: Final answer
    x = 126,719.21

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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.