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Finding the Fourth Proportional to 183,791.40, 275,695.20 and 103,828.20

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Solution

The fourth proportional to 183,791.40, 275,695.20 and 103,828.20 is: 155,746.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,791.40 : 275,695.20 = 103,828.20 : x
  2. Step 2: Convert to fraction form
    183,791.40/275,695.20 = 103,828.20/x
  3. Step 3: Cross multiply
    183,791.40x = 275,695.20 × 103,828.20
  4. Step 4: Simplify right side
    183,791.40x = 28,624,936,364.64
  5. Step 5: Solve for x
    x = 28,624,936,364.64/183,791.40
  6. Step 6: Final answer
    x = 155,746.88

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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.