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Finding the Fourth Proportional to 84,620.51, 126,932.12 and 32,015.87

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Solution

The fourth proportional to 84,620.51, 126,932.12 and 32,015.87 is: 48,024.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,620.51 : 126,932.12 = 32,015.87 : x
  2. Step 2: Convert to fraction form
    84,620.51/126,932.12 = 32,015.87/x
  3. Step 3: Cross multiply
    84,620.51x = 126,932.12 × 32,015.87
  4. Step 4: Simplify right side
    84,620.51x = 4,063,842,092.67
  5. Step 5: Solve for x
    x = 4,063,842,092.67/84,620.51
  6. Step 6: Final answer
    x = 48,024.32

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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.