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Finding the Fourth Proportional to 99,246.40, 148,826.40 and 32,660.80

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Solution

The fourth proportional to 99,246.40, 148,826.40 and 32,660.80 is: 48,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,246.40 : 148,826.40 = 32,660.80 : x
  2. Step 2: Convert to fraction form
    99,246.40/148,826.40 = 32,660.80/x
  3. Step 3: Cross multiply
    99,246.40x = 148,826.40 × 32,660.80
  4. Step 4: Simplify right side
    99,246.40x = 4,860,789,285.12
  5. Step 5: Solve for x
    x = 4,860,789,285.12/99,246.40
  6. Step 6: Final answer
    x = 48,976.98

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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.