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Finding the Fourth Proportional to 88,997.76, 122,814.48 and 54,992.64

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Solution

The fourth proportional to 88,997.76, 122,814.48 and 54,992.64 is: 75,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,997.76 : 122,814.48 = 54,992.64 : x
  2. Step 2: Convert to fraction form
    88,997.76/122,814.48 = 54,992.64/x
  3. Step 3: Cross multiply
    88,997.76x = 122,814.48 × 54,992.64
  4. Step 4: Simplify right side
    88,997.76x = 6,753,892,485.43
  5. Step 5: Solve for x
    x = 6,753,892,485.43/88,997.76
  6. Step 6: Final answer
    x = 75,888.34

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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.