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Finding the Fourth Proportional to 99,658.80, 149,488.20 and 95,722.20

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Solution

The fourth proportional to 99,658.80, 149,488.20 and 95,722.20 is: 143,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,658.80 : 149,488.20 = 95,722.20 : x
  2. Step 2: Convert to fraction form
    99,658.80/149,488.20 = 95,722.20/x
  3. Step 3: Cross multiply
    99,658.80x = 149,488.20 × 95,722.20
  4. Step 4: Simplify right side
    99,658.80x = 14,309,339,378.04
  5. Step 5: Solve for x
    x = 14,309,339,378.04/99,658.80
  6. Step 6: Final answer
    x = 143,583.30

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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.