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Finding the Fourth Proportional to 171,788.51, 236,912.92 and 107,263.71

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Solution

The fourth proportional to 171,788.51, 236,912.92 and 107,263.71 is: 147,927.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,788.51 : 236,912.92 = 107,263.71 : x
  2. Step 2: Convert to fraction form
    171,788.51/236,912.92 = 107,263.71/x
  3. Step 3: Cross multiply
    171,788.51x = 236,912.92 × 107,263.71
  4. Step 4: Simplify right side
    171,788.51x = 25,412,158,477.97
  5. Step 5: Solve for x
    x = 25,412,158,477.97/171,788.51
  6. Step 6: Final answer
    x = 147,927.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.