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Finding the Fourth Proportional to 99,246.30, 148,912.65 and 49,998.30

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Solution

The fourth proportional to 99,246.30, 148,912.65 and 49,998.30 is: 75,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,246.30 : 148,912.65 = 49,998.30 : x
  2. Step 2: Convert to fraction form
    99,246.30/148,912.65 = 49,998.30/x
  3. Step 3: Cross multiply
    99,246.30x = 148,912.65 × 49,998.30
  4. Step 4: Simplify right side
    99,246.30x = 7,445,379,348.50
  5. Step 5: Solve for x
    x = 7,445,379,348.50/99,246.30
  6. Step 6: Final answer
    x = 75,019.21

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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.