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Finding the Fourth Proportional to 101,845.30, 152,675.60 and 55,043.50

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Solution

The fourth proportional to 101,845.30, 152,675.60 and 55,043.50 is: 82,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,845.30 : 152,675.60 = 55,043.50 : x
  2. Step 2: Convert to fraction form
    101,845.30/152,675.60 = 55,043.50/x
  3. Step 3: Cross multiply
    101,845.30x = 152,675.60 × 55,043.50
  4. Step 4: Simplify right side
    101,845.30x = 8,403,799,388.60
  5. Step 5: Solve for x
    x = 8,403,799,388.60/101,845.30
  6. Step 6: Final answer
    x = 82,515.34

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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.