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Finding the Fourth Proportional to 231,091.56, 346,656.96 and 64,879.56

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Solution

The fourth proportional to 231,091.56, 346,656.96 and 64,879.56 is: 97,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,091.56 : 346,656.96 = 64,879.56 : x
  2. Step 2: Convert to fraction form
    231,091.56/346,656.96 = 64,879.56/x
  3. Step 3: Cross multiply
    231,091.56x = 346,656.96 × 64,879.56
  4. Step 4: Simplify right side
    231,091.56x = 22,490,951,035.74
  5. Step 5: Solve for x
    x = 22,490,951,035.74/231,091.56
  6. Step 6: Final answer
    x = 97,324.85

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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.