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Finding the Fourth Proportional to 183,791.40, 275,541.30 and 100,685.40

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Solution

The fourth proportional to 183,791.40, 275,541.30 and 100,685.40 is: 150,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,791.40 : 275,541.30 = 100,685.40 : x
  2. Step 2: Convert to fraction form
    183,791.40/275,541.30 = 100,685.40/x
  3. Step 3: Cross multiply
    183,791.40x = 275,541.30 × 100,685.40
  4. Step 4: Simplify right side
    183,791.40x = 27,742,986,007.02
  5. Step 5: Solve for x
    x = 27,742,986,007.02/183,791.40
  6. Step 6: Final answer
    x = 150,948.23

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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.