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Finding the Fourth Proportional to 127,101.60, 190,652.40 and 73,884.60

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Solution

The fourth proportional to 127,101.60, 190,652.40 and 73,884.60 is: 110,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,101.60 : 190,652.40 = 73,884.60 : x
  2. Step 2: Convert to fraction form
    127,101.60/190,652.40 = 73,884.60/x
  3. Step 3: Cross multiply
    127,101.60x = 190,652.40 × 73,884.60
  4. Step 4: Simplify right side
    127,101.60x = 14,086,276,313.04
  5. Step 5: Solve for x
    x = 14,086,276,313.04/127,101.60
  6. Step 6: Final answer
    x = 110,826.90

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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.