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Finding the Fourth Proportional to 350,876.81, 484,209.65 and 189,731.48

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Solution

The fourth proportional to 350,876.81, 484,209.65 and 189,731.48 is: 261,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,876.81 : 484,209.65 = 189,731.48 : x
  2. Step 2: Convert to fraction form
    350,876.81/484,209.65 = 189,731.48/x
  3. Step 3: Cross multiply
    350,876.81x = 484,209.65 × 189,731.48
  4. Step 4: Simplify right side
    350,876.81x = 91,869,811,578.06
  5. Step 5: Solve for x
    x = 91,869,811,578.06/350,876.81
  6. Step 6: Final answer
    x = 261,829.25

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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.