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Finding the Fourth Proportional to 99,506.80, 149,260.20 and 25,634.80

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Solution

The fourth proportional to 99,506.80, 149,260.20 and 25,634.80 is: 38,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,506.80 : 149,260.20 = 25,634.80 : x
  2. Step 2: Convert to fraction form
    99,506.80/149,260.20 = 25,634.80/x
  3. Step 3: Cross multiply
    99,506.80x = 149,260.20 × 25,634.80
  4. Step 4: Simplify right side
    99,506.80x = 3,826,255,374.96
  5. Step 5: Solve for x
    x = 3,826,255,374.96/99,506.80
  6. Step 6: Final answer
    x = 38,452.20

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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.