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Finding the Fourth Proportional to 73,999.90, 110,999.85 and 65,251.90

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Solution

The fourth proportional to 73,999.90, 110,999.85 and 65,251.90 is: 97,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,999.90 : 110,999.85 = 65,251.90 : x
  2. Step 2: Convert to fraction form
    73,999.90/110,999.85 = 65,251.90/x
  3. Step 3: Cross multiply
    73,999.90x = 110,999.85 × 65,251.90
  4. Step 4: Simplify right side
    73,999.90x = 7,242,951,112.22
  5. Step 5: Solve for x
    x = 7,242,951,112.22/73,999.90
  6. Step 6: Final answer
    x = 97,877.85

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1.5x scale

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.