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Finding the Fourth Proportional to 238,588.70, 357,873.69 and 80,817.14

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Solution

The fourth proportional to 238,588.70, 357,873.69 and 80,817.14 is: 121,222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,588.70 : 357,873.69 = 80,817.14 : x
  2. Step 2: Convert to fraction form
    238,588.70/357,873.69 = 80,817.14/x
  3. Step 3: Cross multiply
    238,588.70x = 357,873.69 × 80,817.14
  4. Step 4: Simplify right side
    238,588.70x = 28,922,329,304.80
  5. Step 5: Solve for x
    x = 28,922,329,304.80/238,588.70
  6. Step 6: Final answer
    x = 121,222.55

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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.