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Finding the Fourth Proportional to 183,893.49, 253,745.46 and 103,305.78

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Solution

The fourth proportional to 183,893.49, 253,745.46 and 103,305.78 is: 142,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,893.49 : 253,745.46 = 103,305.78 : x
  2. Step 2: Convert to fraction form
    183,893.49/253,745.46 = 103,305.78/x
  3. Step 3: Cross multiply
    183,893.49x = 253,745.46 × 103,305.78
  4. Step 4: Simplify right side
    183,893.49x = 26,213,372,666.76
  5. Step 5: Solve for x
    x = 26,213,372,666.76/183,893.49
  6. Step 6: Final answer
    x = 142,546.50

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1.5x scale

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.