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Finding the Fourth Proportional to 183,963.70, 275,945.55 and 65,638.90

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Solution

The fourth proportional to 183,963.70, 275,945.55 and 65,638.90 is: 98,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,963.70 : 275,945.55 = 65,638.90 : x
  2. Step 2: Convert to fraction form
    183,963.70/275,945.55 = 65,638.90/x
  3. Step 3: Cross multiply
    183,963.70x = 275,945.55 × 65,638.90
  4. Step 4: Simplify right side
    183,963.70x = 18,112,762,361.90
  5. Step 5: Solve for x
    x = 18,112,762,361.90/183,963.70
  6. Step 6: Final answer
    x = 98,458.35

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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.