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Finding the Fourth Proportional to 234,378.81, 351,588.96 and 65,900.61

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Solution

The fourth proportional to 234,378.81, 351,588.96 and 65,900.61 is: 98,856.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,378.81 : 351,588.96 = 65,900.61 : x
  2. Step 2: Convert to fraction form
    234,378.81/351,588.96 = 65,900.61/x
  3. Step 3: Cross multiply
    234,378.81x = 351,588.96 × 65,900.61
  4. Step 4: Simplify right side
    234,378.81x = 23,169,926,933.27
  5. Step 5: Solve for x
    x = 23,169,926,933.27/234,378.81
  6. Step 6: Final answer
    x = 98,856.75

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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.