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Finding the Fourth Proportional to 76,884.56, 115,292.21 and 32,488.46

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Solution

The fourth proportional to 76,884.56, 115,292.21 and 32,488.46 is: 48,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,884.56 : 115,292.21 = 32,488.46 : x
  2. Step 2: Convert to fraction form
    76,884.56/115,292.21 = 32,488.46/x
  3. Step 3: Cross multiply
    76,884.56x = 115,292.21 × 32,488.46
  4. Step 4: Simplify right side
    76,884.56x = 3,745,666,352.90
  5. Step 5: Solve for x
    x = 3,745,666,352.90/76,884.56
  6. Step 6: Final answer
    x = 48,718.06

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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.