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Finding the Fourth Proportional to 216,382.51, 324,089.79 and 125,086.06

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Solution

The fourth proportional to 216,382.51, 324,089.79 and 125,086.06 is: 187,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,382.51 : 324,089.79 = 125,086.06 : x
  2. Step 2: Convert to fraction form
    216,382.51/324,089.79 = 125,086.06/x
  3. Step 3: Cross multiply
    216,382.51x = 324,089.79 × 125,086.06
  4. Step 4: Simplify right side
    216,382.51x = 40,539,114,917.33
  5. Step 5: Solve for x
    x = 40,539,114,917.33/216,382.51
  6. Step 6: Final answer
    x = 187,349.31

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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.