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Finding the Fourth Proportional to 238,990.67, 358,561.35 and 112,625.81

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Solution

The fourth proportional to 238,990.67, 358,561.35 and 112,625.81 is: 168,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,990.67 : 358,561.35 = 112,625.81 : x
  2. Step 2: Convert to fraction form
    238,990.67/358,561.35 = 112,625.81/x
  3. Step 3: Cross multiply
    238,990.67x = 358,561.35 × 112,625.81
  4. Step 4: Simplify right side
    238,990.67x = 40,383,260,122.51
  5. Step 5: Solve for x
    x = 40,383,260,122.51/238,990.67
  6. Step 6: Final answer
    x = 168,974.22

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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.