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Finding the Fourth Proportional to 350,958.81, 484,323.15 and 189,813.87

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Solution

The fourth proportional to 350,958.81, 484,323.15 and 189,813.87 is: 261,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,958.81 : 484,323.15 = 189,813.87 : x
  2. Step 2: Convert to fraction form
    350,958.81/484,323.15 = 189,813.87/x
  3. Step 3: Cross multiply
    350,958.81x = 484,323.15 × 189,813.87
  4. Step 4: Simplify right side
    350,958.81x = 91,931,251,432.09
  5. Step 5: Solve for x
    x = 91,931,251,432.09/350,958.81
  6. Step 6: Final answer
    x = 261,943.14

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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.