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Finding the Fourth Proportional to 186,913.71, 280,083.42 and 126,864.09

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Solution

The fourth proportional to 186,913.71, 280,083.42 and 126,864.09 is: 190,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,913.71 : 280,083.42 = 126,864.09 : x
  2. Step 2: Convert to fraction form
    186,913.71/280,083.42 = 126,864.09/x
  3. Step 3: Cross multiply
    186,913.71x = 280,083.42 × 126,864.09
  4. Step 4: Simplify right side
    186,913.71x = 35,532,528,202.39
  5. Step 5: Solve for x
    x = 35,532,528,202.39/186,913.71
  6. Step 6: Final answer
    x = 190,101.24

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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.